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a1994a5343
qpdf/configure.ac
Jay Berkenbilt 734ab58764 Use -Wshadow=local if supported
2020-04-16 12:41:43 -04:00

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dnl Process this file with autoconf to produce a configure script.
dnl This config.in requires autoconf 2.5 or greater.
AC_PREREQ([2.68])
AC_INIT([qpdf],[10.0.1])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_FILES([autoconf.mk])
AC_CONFIG_FILES([manual/html.xsl manual/print.xsl])
AC_CONFIG_FILES([libqpdf.pc])
AC_CONFIG_FILES([libqpdf.map])
AC_CONFIG_HEADERS([libqpdf/qpdf/qpdf-config.h])
AC_ARG_ENABLE(check-autofiles,
AS_HELP_STRING([--enable-check-autofiles],
[if specified, verify checksums on automatically generated files (default=yes); package maintainers may want to disable this]),
[if test "$enableval" = "no"; then
CHECK_AUTOFILES=0
else
CHECK_AUTOFILES=1
fi],
[CHECK_AUTOFILES=1])
# Check to see if automatically generated files are outdated and if we
# can update them.
AC_CHECK_PROG(AUTOCONF,autoconf,1,0)
AC_CHECK_PROG(AUTOHEADER,autoheader,1,0)
AC_CHECK_PROG(ACLOCAL,aclocal,1,0)
AC_CHECK_PROG(SHA256SUM,sha256sum,1,0)
if test "$CHECK_AUTOFILES$AUTOCONF$AUTOHEADER$ACLOCAL$SHA256SUM" = "11111"; then
if ! sha256sum -c autofiles.sums; then
AC_MSG_ERROR(autofiles are outdated; rerun autogen.sh)
fi
fi
AC_PROG_CC
AC_PROG_CC_C99
AC_PROG_CXX
AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory])
AC_HEADER_STDC
LT_INIT([win32-dll])
# * If any interfaces have been removed or changed, or if any private
# member variables or virtual functions have been added to any
# class, we are not binary compatible. Increment LT_CURRENT, and set
# LT_AGE and LT_REVISION to 0.
#
# * Otherwise, if any interfaces have been added since the last public
# release, then increment LT_CURRENT and LT_AGE, and set LT_REVISION
# to 0.
#
# * Otherwise, increment LT_REVISION
# LT = libtool
LT_CURRENT=28
LT_AGE=0
LT_REVISION=1
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)
LT_SONAME=$(expr $LT_CURRENT - $LT_AGE)
AC_SUBST(LT_SONAME)
AC_MSG_CHECKING(for -fvisibility=hidden)
try_flags=-fvisibility=hidden
oCXXFLAGS=$CXXFLAGS
CXXFLAGS="$CXXFLAGS $try_flags"
AC_LANG_PUSH([C++])
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[class X
{
public:
__attribute__ ((visibility ("default")))
X() {}
__attribute__ ((visibility ("default")))
void f() {}
};
]],[[X x; x.f();]])],
[qpdf_VISIBILITY_HIDDEN=1],
[qpdf_VISIBILITY_HIDDEN=0])
AC_LANG_POP
if test "$qpdf_VISIBILITY_HIDDEN" = "0"; then
AC_MSG_RESULT(no)
CXXFLAGS=$oCXXFLAGS
else
AC_MSG_RESULT(yes)
CFLAGS="$CFLAGS $try_flags"
fi
AC_MSG_CHECKING(whether to use insecure random numbers)
AC_ARG_ENABLE(insecure-random,
AS_HELP_STRING([--enable-insecure-random],
[whether to use stdlib's random number generator (default is no)]),
[if test "$enableval" = "yes"; then
qpdf_INSECURE_RANDOM=1;
else
qpdf_INSECURE_RANDOM=0;
fi], [qpdf_INSECURE_RANDOM=0])
if test "$qpdf_INSECURE_RANDOM" = "1"; then
AC_MSG_RESULT(yes)
AC_DEFINE([USE_INSECURE_RANDOM], [1], [Whether to use insecure random numbers])
else
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(whether to use OS-provided secure random numbers)
AC_ARG_ENABLE(os-secure-random,
AS_HELP_STRING([--enable-os-secure-random],
[whether to try to use OS-provided secure random numbers (default is yes)]),
[if test "$enableval" = "yes"; then
qpdf_OS_SECURE_RANDOM=1;
else
qpdf_OS_SECURE_RANDOM=0;
fi], [qpdf_OS_SECURE_RANDOM=1])
if test "$qpdf_OS_SECURE_RANDOM" = "1"; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
AC_DEFINE([SKIP_OS_SECURE_RANDOM], [1], [Whether to suppress use of OS-provided secure random numbers])
fi
AX_RANDOM_DEVICE
AC_MSG_CHECKING(whether to avoid Windows HANDLE type)
AC_ARG_ENABLE(avoid-windows-handle,
AS_HELP_STRING([--enable-avoid-windows-handle],
[whether to avoid use of HANDLE, useful for some embedded Windows builds (default is no)]),
[if test "$enableval" = "yes"; then
qpdf_AVOID_HANDLE=1;
else
qpdf_AVOID_HANDLE=0;
fi], [qpdf_AVOID_HANDLE=0])
if test "$qpdf_AVOID_HANDLE" = "1"; then
AC_MSG_RESULT(yes)
AC_DEFINE([AVOID_WINDOWS_HANDLE], [1], [Whether to avoid use of HANDLE in Windows])
else
AC_MSG_RESULT(no)
fi
USE_EXTERNAL_LIBS=0
AC_MSG_CHECKING(for whether to use external libraries distribution)
AC_ARG_ENABLE(external-libs,
AS_HELP_STRING([--enable-external-libs],
[whether to use external libraries distribution]),
[if test "$enableval" = "yes"; then
USE_EXTERNAL_LIBS=1;
else
USE_EXTERNAL_LIBS=0;
fi], [BUILD_INTERNAL_LIBS=0])
if test "$BUILD_INTERNAL_LIBS" = "0"; then
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(yes)
fi
AC_CHECK_SIZEOF([size_t])
if test "$ac_cv_sizeof_size_t" = "4"; then
IS_32BIT=1
WINDOWS_WORDSIZE=32
else
IS_32BIT=0
WINDOWS_WORDSIZE=64
fi
AC_SUBST(IS_32BIT)
AC_SUBST(WINDOWS_WORDSIZE)
PKG_PROG_PKG_CONFIG
if test "$BUILD_INTERNAL_LIBS" = "0"; then
if test "$PKG_CONFIG" != ""; then
PKG_CHECK_MODULES([pc_zlib], [zlib],
[CFLAGS="$CFLAGS $pc_zlib_CFLAGS"
CXXFLAGS="$CXXFLAGS $pc_zlib_CXXFLAGS"
LIBS="$LIBS $pc_zlib_LIBS"
], [:])
PKG_CHECK_MODULES([pc_libjpeg], [libjpeg],
[CFLAGS="$CFLAGS $pc_libjpeg_CFLAGS"
CXXFLAGS="$CXXFLAGS $pc_libjpeg_CXXFLAGS"
LIBS="$LIBS $pc_libjpeg_LIBS"
],[:])
fi
if test "$pc_zlib_LIBS" = ""; then
AC_CHECK_HEADER(zlib.h,,[MISSING_ZLIB_H=1; MISSING_ANY=1])
AC_SEARCH_LIBS(deflate,z zlib,,[MISSING_ZLIB=1; MISSING_ANY=1])
fi
if test "$pc_libjpeg_LIBS" = ""; then
AC_CHECK_HEADER(jpeglib.h,,[MISSING_JPEG_H=1; MISSING_ANY=1])
AC_SEARCH_LIBS(jpeg_destroy,jpeg,,[MISSING_JPEG=1; MISSING_ANY=1])
fi
if test "$LIBS" != ""; then
nLIBS=""
for x in $LIBS; do
if echo $x | grep -q '^-L'; then
LDFLAGS="$LDFLAGS $x"
else
nLIBS="$nLIBS $x"
fi
LIBS=$nLIBS
done
fi
fi
qpdf_USE_WMAIN=0
AC_LANG_PUSH([C++])
AC_SUBST(WINDOWS_WMAIN_COMPILE)
AC_SUBST(WINDOWS_WMAIN_LINK)
for i in 0 1; do
if test "$qpdf_USE_WMAIN" = "0"; then
oLDFLAGS="$LDFLAGS"
if test "$i" = "1"; then
nLDFLAGS="-municode"
LDFLAGS="$LDFLAGS $nLDFLAGS"
msg="checking for wmain with $nLDFLAGS"
else
nLDFLAGS=
msg="checking for wmain"
fi
AC_MSG_CHECKING($msg)
AC_LINK_IFELSE([AC_LANG_SOURCE(
[[#include <windows.h>
#include <string.h>
#include <stdio.h>
extern "C"
int wmain(int argc, wchar_t* argv[])
{
size_t x = wcslen(argv[0]);
return 0;
}
]])],
[qpdf_USE_WMAIN=1],
[qpdf_USE_WMAIN=0])
LDFLAGS="$oLDFLAGS"
if test "$qpdf_USE_WMAIN" = "1"; then
AC_MSG_RESULT(yes)
WINDOWS_WMAIN_COMPILE="-DWINDOWS_WMAIN $nLDFLAGS"
WINDOWS_WMAIN_LINK="$nLDFLAGS"
else
AC_MSG_RESULT(no)
fi
fi
done
AC_LANG_POP
AC_LANG_PUSH([C++])
AC_MSG_CHECKING(whether to use -latomic)
dnl On some platforms with some versions of gcc, you have to link with
dnl -latomic in order for std::atomic to work. Passing --as-needed
dnl prevents unnecessary linking with -latomic.
oLDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -Wl,--as-needed -latomic"
AC_LINK_IFELSE([AC_LANG_SOURCE(
[[#include <atomic>
int main()
{
static std::atomic<int> a{0};
a = a.fetch_add(1);
return 0;
}
]])],
[qpdf_USE_ATOMIC=1],
[qpdf_USE_ATOMIC=0])
if test "$qpdf_USE_ATOMIC" = "1"; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
LDFLAGS="$oLDFLAGS"
fi
AC_LANG_POP
if test "x$qpdf_OS_SECURE_RANDOM" = "x1"; then
OLIBS=$LIBS
LIBS="$LIBS Advapi32.lib"
AC_MSG_CHECKING(for Advapi32 library)
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#pragma comment(lib, "crypt32.lib")
#include <windows.h>
#include <wincrypt.h>
HCRYPTPROV cp;]],
[CryptAcquireContext(&cp, NULL, NULL, PROV_RSA_FULL, 0);]
)],
[AC_MSG_RESULT(yes)
LIBS="$OLIBS -lAdvapi32"],
[AC_MSG_RESULT(no)
LIBS=$OLIBS])
fi
QPDF_LARGE_FILE_TEST_PATH=
AC_SUBST(QPDF_LARGE_FILE_TEST_PATH)
AC_ARG_WITH(large-file-test-path,
AS_HELP_STRING([--with-large-file-test-path=path],
[To enable testing of files > 4GB, give the path to a directory with at least 11 GB free. The test suite will write temporary files to this directory. Alternatively, just set the QPDF_LARGE_FILE_TEST_PATH environment variable to the path before running the test suite.]),
[QPDF_LARGE_FILE_TEST_PATH=$withval],
[QPDF_LARGE_FILE_TEST_PATH=])
AC_SYS_LARGEFILE
AC_FUNC_FSEEKO
AC_CHECK_FUNCS([fseeko64])
AC_CHECK_FUNCS(random)
# Check if LD supports linker scripts, and define conditional
# HAVE_LD_VERSION_SCRIPT if so. This functionality is currently
# constrained to compilers using GNU ld on ELF systems or systems
# which provide an adequate emulation thereof.
AC_ARG_ENABLE([ld-version-script],
AS_HELP_STRING([--enable-ld-version-script],
[enable linker version script (default is enabled)]),
[have_ld_version_script=$enableval], [have_ld_version_script=yes])
if test "$have_ld_version_script" != no; then
AC_MSG_CHECKING([if LD -Wl,--version-script works])
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
cat > conftest.map <<EOF
VERS_1 {
global: sym;
};
VERS_2 {
global: sym;
} VERS_1;
EOF
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
[have_ld_version_script=yes], [have_ld_version_script=no])
rm -f conftest.map
LDFLAGS="$save_LDFLAGS"
AC_MSG_RESULT($have_ld_version_script)
fi
if test "$have_ld_version_script" = "yes"; then
HAVE_LD_VERSION_SCRIPT=1
else
HAVE_LD_VERSION_SCRIPT=0
fi
AC_SUBST(HAVE_LD_VERSION_SCRIPT)
make_okay=0
for make_prog in make gmake; do
this_make_okay=0
AC_MSG_CHECKING(for gnu make >= 3.81 ($make_prog))
if $make_prog --version >/dev/null 2>&1; then
v=`$make_prog --version | grep 'GNU Make' | sed -e 's/.*Make //'`
maj=`echo $v | cut -d. -f 1`
min=`echo $v | cut -d. -f 2`
if test $maj -gt 3 -o '(' $maj -eq 3 -a $min -ge 81 ')'; then
this_make_okay=1
make_okay=1
fi
fi
if test "$this_make_okay" = "1"; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
done
if test "$make_okay" = "0"; then
dnl Don't set MISSING_ANY=1 -- maybe user calls make something else
MISSING_MAKE_381=1
ISSUE_WARNINGS=1
fi
AC_SUBST(GENDEPS)
GENDEPS=0
AC_MSG_CHECKING(for whether $CC supports -MD -MF x.dep -MP)
oCFLAGS=$CFLAGS
rm -f x.dep
CFLAGS="$CFLAGS -MD -MF x.dep -MP"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#include <stdio.h>]], [[FILE* a = stdout]]
)],
[qpdf_DEPFLAGS=yes],
[qpdf_DEPFLAGS=no])
CFLAGS=$oCFLAGS
if test "$qpdf_DEPFLAGS" = "yes"; then
if ! grep stdio.h x.dep >/dev/null 2>&1; then
qpdf_DEPFLAGS=no
fi
fi
rm -f x.dep
if test "$qpdf_DEPFLAGS" = "yes"; then
AC_MSG_RESULT(yes)
GENDEPS=1
else
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(which build rules to use)
AC_SUBST(BUILDRULES)
AC_ARG_WITH(buildrules,
AS_HELP_STRING([--with-buildrules=rules],
[which build rules to use; see README.md]),
[BUILDRULES=$withval],
[BUILDRULES=libtool])
AC_MSG_RESULT($BUILDRULES)
AC_SUBST(WFLAGS)
AC_SUBST(CXXWFLAGS)
qpdf_USE_EXTRA_WARNINGS=0
if test "$BUILDRULES" = "msvc"; then
dnl /w14996 makes warning 4996 a level 1 warning. This warning
dnl reports on functions that Microsoft considers unsafe or
dnl deprecated. Removing these warnings helps people who want to
dnl write applications based on qpdf that can be Windows 8
dnl certified.
try_flags="-w14996"
else
try_flags="-Wall"
fi
AC_MSG_CHECKING(for whether $CC supports $try_flags)
oCFLAGS=$CFLAGS
CFLAGS="$CFLAGS $try_flags"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int a = 1; int b = a; a = b;]])],
[qpdf_USE_EXTRA_WARNINGS=1],[qpdf_USE_EXTRA_WARNINGS=0])
CFLAGS=$oCFLAGS
if test "$qpdf_USE_EXTRA_WARNINGS" = "1"; then
AC_MSG_RESULT(yes)
WFLAGS="$try_flags"
else
AC_MSG_RESULT(no)
fi
if test "$BUILDRULES" != "msvc"; then
qpdf_USE_EXTRA_WARNINGS=0
try_flags="-Wold-style-cast"
AC_MSG_CHECKING(for whether $CXX supports $try_flags)
oCXXFLAGS=$CXXFLAGS
CXXFLAGS="$CXXFLAGS $try_flags"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int a = 1; int b = a; a = b;]])],
[qpdf_USE_EXTRA_WARNINGS=1],[qpdf_USE_EXTRA_WARNINGS=0])
CXXFLAGS=$oCXXFLAGS
if test "$qpdf_USE_EXTRA_WARNINGS" = "1"; then
AC_MSG_RESULT(yes)
CXXWFLAGS="$try_flags"
else
AC_MSG_RESULT(no)
fi
fi
if test "$BUILDRULES" = "msvc"; then
try_flags=-FS
AC_MSG_CHECKING(for whether $CC supports $try_flags)
oCFLAGS=$CFLAGS
CFLAGS="$CFLAGS $try_flags"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int a = 1; int b = a; a = b;]])],
[qpdf_USE_FS=1],[qpdf_USE_FS=0])
if test "$qpdf_USE_FS" = "1"; then
AC_MSG_RESULT(yes)
CXXFLAGS="$CXXFLAGS $try_flags"
else
AC_MSG_RESULT(no)
CFLAGS=$oCFLAGS
fi
fi
if test "$BUILDRULES" = "msvc"; then
try_flags="-WX"
else
try_flags="-Werror"
fi
AC_MSG_CHECKING(for whether to use $try_flags)
AC_ARG_ENABLE(werror,
AS_HELP_STRING([--enable-werror],
[whether to treat warnings as errors (default is no)]),
[if test "$enableval" = "yes"; then
qpdf_USE_WERROR=1;
else
qpdf_USE_WERROR=0;
fi], [qpdf_USE_WERROR=0])
if test "$qpdf_USE_WERROR" = "1"; then
AC_MSG_RESULT(yes)
WFLAGS="$WFLAGS $try_flags"
else
AC_MSG_RESULT(no)
fi
if test "$BUILDRULES" = "msvc"; then
try_flags="-W3"
else
try_flags="-Wconversion -Wsign-conversion"
fi
oCFLAGS=$CFLAGS
CFLAGS="$CFLAGS $try_flags"
AC_MSG_CHECKING(for whether to use $try_flags)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int a = 1; int b = a; a = b;]])],
[qpdf_INT_WARNINGS=1],[qpdf_INT_WARNINGS=0])
if test "$qpdf_INT_WARNINGS" = "1"; then
AC_MSG_RESULT(yes)
CXXFLAGS="$CXXFLAGS $try_flags"
else
AC_MSG_RESULT(no)
CFLAGS=$oCFLAGS
fi
if test "$BUILDRULES" != "msvc"; then
try_flags="-Wshadow=local"
oCFLAGS=$CFLAGS
CFLAGS="$CFLAGS $try_flags -Werror"
AC_MSG_CHECKING(for whether to use $try_flags)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int a = 1; int b = a; a = b;]])],
[qpdf_SHADOW_WARNINGS=1],[qpdf_SHADOW_WARNINGS=0])
if test "$qpdf_SHADOW_WARNINGS" = "1"; then
AC_MSG_RESULT(yes)
CFLAGS="$oCFLAGS $try_flags"
CXXFLAGS="$CXXFLAGS $try_flags"
else
AC_MSG_RESULT(no)
CFLAGS=$oCFLAGS
fi
fi
AC_SUBST(WINDOWS_WMAIN_XLINK_FLAGS)
AC_SUBST(WINDOWS_MAIN_XLINK_FLAGS)
if test "$BUILDRULES" = "msvc"; then
WINDOWS_WMAIN_XLINK_FLAGS="-link wsetargv.obj"
WINDOWS_MAIN_XLINK_FLAGS="-link setargv.obj"
fi
dnl BEGIN CRYPTO
dnl By default, we build in support for every crypto provider that we
dnl can. If implicit crypto is disabled, we don't build support for
dnl any crypto that is not explicitly enabled. Test for various crypto
dnl providers in increasing order of priority. The last one found
dnl becomes the default unless a default is explicitly specified.
AC_MSG_CHECKING(for whether to use implicit crypto)
AC_ARG_ENABLE(implicit-crypto,
AS_HELP_STRING([--enable-implicit-crypto],
[whether to enable available crypto providers that are not explicitly requested; true by default]),
[if test "$enableval" = "yes"; then
IMPLICIT_CRYPTO=1
else
IMPLICIT_CRYPTO=0
fi],
[IMPLICIT_CRYPTO=1])
if test "$IMPLICIT_CRYPTO" = "1"; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl Native crypto is always available unless explicitly disabled.
AC_SUBST(USE_CRYPTO_NATIVE)
AC_ARG_ENABLE(crypto-native,
AS_HELP_STRING([--enable-crypto-native],
[whether to include support for native crypto provider]),
[if test "$enableval" = "yes"; then
USE_CRYPTO_NATIVE=1
else
USE_CRYPTO_NATIVE=0
fi],
[USE_CRYPTO_NATIVE=$IMPLICIT_CRYPTO])
if test "$USE_CRYPTO_NATIVE" = "1"; then
AC_DEFINE([USE_CRYPTO_NATIVE], 1, [Whether to use the native crypto provider])
DEFAULT_CRYPTO=native
fi
dnl If the openssl/BoringSSL provider is explicitly requested, require openssl
dnl If the openssl provider is not explicitly disabled, enable it if
dnl openssl is available. If the openssl provider is explicitly
dnl disabled, do not link with openssl even if present.
PKG_CHECK_MODULES([pc_openssl], [openssl], [OPENSSL_FOUND=1], [OPENSSL_FOUND=0])
if test "$OPENSSL_FOUND" = "0"; then
AC_CHECK_HEADER([openssl/evp.h],[OPENSSL_FOUND=1],[OPENSSL_FOUND=0])
AC_SEARCH_LIBS(EVP_DigestInit_ex,openssl,[OPENSSL_FOUND=1],[OPENSSL_FOUND=0])
fi
IMPLICIT_OPENSSL=0
USE_CRYPTO_OPENSSL=0
AC_SUBST(USE_CRYPTO_OPENSSL)
AC_ARG_ENABLE(crypto-openssl,
AS_HELP_STRING([--enable-crypto-openssl],
[whether to include support for the BoringSSL crypto provider]),
[if test "$enableval" = "yes"; then
USE_CRYPTO_OPENSSL=1
else
USE_CRYPTO_OPENSSL=0
fi],
[IMPLICIT_OPENSSL=$IMPLICIT_CRYPTO])
if test "$IMPLICIT_OPENSSL" = "1"; then
USE_CRYPTO_OPENSSL=$OPENSSL_FOUND
if test "$USE_CRYPTO_OPENSSL" = "1"; then
AC_MSG_NOTICE(enabling openssl crypto provider since openssl is available)
else
AC_MSG_NOTICE(not enabling openssl crypto provider since openssl was not found)
fi
fi
if test "$USE_CRYPTO_OPENSSL" = "1" -a "$OPENSSL_FOUND" = "0"; then
AC_MSG_ERROR(unable to use requested openssl crypto provider without openssl)
fi
if test "$USE_CRYPTO_OPENSSL" = "1"; then
CFLAGS="$CFLAGS $pc_openssl_CFLAGS"
CXXFLAGS="$CXXFLAGS $pc_openssl_CXXFLAGS"
LIBS="$LIBS $pc_openssl_LIBS"
AC_DEFINE([USE_CRYPTO_OPENSSL], 1, [Whether to use the openssl crypto provider])
DEFAULT_CRYPTO=openssl
elif test "$OPENSSL_FOUND" = "1"; then
AC_MSG_NOTICE(not linking with openssl even though it is available)
fi
dnl If the gnutls provider is explicitly requested, require gnutls. If
dnl the gnutls provider is not explicitly disabled, enable it if
dnl gnutls is available. If the gnutls provider is explicitly
dnl disabled, do not link with gnutls even if present.
PKG_CHECK_MODULES([pc_gnutls], [gnutls], [GNUTLS_FOUND=1], [GNUTLS_FOUND=0])
if test "$GNUTLS_FOUND" = "0"; then
AC_CHECK_HEADER(gnutls/gnutls.h,[GNUTLS_FOUND=1],[GNUTLS_FOUND=0])
AC_SEARCH_LIBS(gnutls_hash_init,gnutls,[GNUTLS_FOUND=1],[GNUTLS_FOUND=0])
fi
IMPLICIT_GNUTLS=0
USE_CRYPTO_GNUTLS=0
AC_SUBST(USE_CRYPTO_GNUTLS)
AC_ARG_ENABLE(crypto-gnutls,
AS_HELP_STRING([--enable-crypto-gnutls],
[whether to include support for gnutls crypto provider]),
[if test "$enableval" = "yes"; then
USE_CRYPTO_GNUTLS=1
else
USE_CRYPTO_GNUTLS=0
fi],
[IMPLICIT_GNUTLS=$IMPLICIT_CRYPTO])
if test "$IMPLICIT_GNUTLS" = "1"; then
USE_CRYPTO_GNUTLS=$GNUTLS_FOUND
if test "$USE_CRYPTO_GNUTLS" = "1"; then
AC_MSG_NOTICE(enabling gnutls crypto provider since gnutls is available)
else
AC_MSG_NOTICE(not enabling gnutls crypto provider since gnutls was not found)
fi
fi
if test "$USE_CRYPTO_GNUTLS" = "1" -a "$GNUTLS_FOUND" = "0"; then
AC_MSG_ERROR(unable to use requested gnutls crypto provider without gnutls)
fi
if test "$USE_CRYPTO_GNUTLS" = "1"; then
CFLAGS="$CFLAGS $pc_gnutls_CFLAGS"
CXXFLAGS="$CXXFLAGS $pc_gnutls_CXXFLAGS"
LIBS="$LIBS $pc_gnutls_LIBS"
AC_DEFINE([USE_CRYPTO_GNUTLS], 1, [Whether to use the gnutls crypto provider])
DEFAULT_CRYPTO=gnutls
elif test "$GNUTLS_FOUND" = "1"; then
AC_MSG_NOTICE(not linking with gnutls even though it is available)
fi
dnl Allow the default crypto provider to be specified explicitly.
AC_MSG_CHECKING(which crypto to use by default)
AC_SUBST(DEFAULT_CRYPTO)
AC_ARG_WITH(default-crypto,
AS_HELP_STRING([--with-default-crypto=provider],
[which crypto provider to use by default; see README.md]),
[DEFAULT_CRYPTO=$withval],
[])
AC_MSG_RESULT($DEFAULT_CRYPTO)
AC_DEFINE_UNQUOTED([DEFAULT_CRYPTO], "$DEFAULT_CRYPTO", [Default crypto provider])
dnl Make sure the default crypto provider is actually being built.
bad_crypto=0
case "$DEFAULT_CRYPTO" in
"native")
if test "$USE_CRYPTO_NATIVE" != "1"; then
bad_crypto=1
fi
;;
"openssl")
if test "$USE_CRYPTO_OPENSSL" != "1"; then
bad_crypto=1
fi
;;
"gnutls")
if test "$USE_CRYPTO_GNUTLS" != "1"; then
bad_crypto=1
fi
;;
*)
bad_crypto=1
;;
esac
if test "$bad_crypto" = "1"; then
AC_MSG_ERROR(Unsupported default crypto: $DEFAULT_CRYPTO)
fi
dnl END CRYPTO
AC_SUBST(QPDF_SKIP_TEST_COMPARE_IMAGES)
AC_ARG_ENABLE(test-compare-images,
AS_HELP_STRING([--enable-test-compare-images],
[whether to compare images in test suite; disabled by default, enabling requires ghostscript and tiffcmp to be available]),
[if test "$enableval" = "no"; then
QPDF_SKIP_TEST_COMPARE_IMAGES=1
else
QPDF_SKIP_TEST_COMPARE_IMAGES=0
fi],
[QPDF_SKIP_TEST_COMPARE_IMAGES=1])
AC_SUBST(SHOW_FAILED_TEST_OUTPUT)
AC_ARG_ENABLE(show-failed-test-output,
AS_HELP_STRING([--enable-show-failed-test-output],
[if specified, write failed test output to the console; useful for building on build servers where you can't easily open the test output files]),
[if test "$enableval" = "no"; then
SHOW_FAILED_TEST_OUTPUT=0
else
SHOW_FAILED_TEST_OUTPUT=1
fi],
[SHOW_FAILED_TEST_OUTPUT=0])
AC_ARG_WITH(docbook-xsl,
AS_HELP_STRING([--with-docbook-xsl=DIR],
[location of docbook 4.x xml stylesheets]),
[DOCBOOK_XSL=$withval],
[DOCBOOK_XSL=/usr/share/xml/docbook/stylesheet/nwalsh])
DOCBOOK_XHTML=
AC_SUBST(DOCBOOK_XHTML)
AC_MSG_CHECKING(for xml to xhtml docbook stylesheets)
if test -f "$DOCBOOK_XSL/xhtml/docbook.xsl"; then
DOCBOOK_XHTML="$DOCBOOK_XSL/xhtml/docbook.xsl"
AC_MSG_RESULT($DOCBOOK_XHTML)
else
AC_MSG_RESULT(no)
fi
DOCBOOK_FO=
AC_SUBST(DOCBOOK_FO)
AC_MSG_CHECKING(for xml to fo docbook stylesheets)
if test -f "$DOCBOOK_XSL/fo/docbook.xsl"; then
DOCBOOK_FO="$DOCBOOK_XSL/fo/docbook.xsl"
AC_MSG_RESULT($DOCBOOK_FO)
else
AC_MSG_RESULT(no)
fi
DOCBOOKX_DTD=
AC_SUBST(DOCBOOKX_DTD)
AC_ARG_WITH(docbookx-dtd,
AS_HELP_STRING([--with-docbookx-dtd=FILE],
[location of docbook 4.x xml DTD]),
[DOCBOOKX_DTD=$withval],
[DOCBOOKX_DTD=/usr/share/xml/docbook/schema/dtd/4/docbookx.dtd])
AC_MSG_CHECKING(for docbook 4.x xml DTD)
if test -f "$DOCBOOKX_DTD"; then
AC_MSG_RESULT($DOCBOOKX_DTD)
else
AC_MSG_RESULT(no)
fi
AC_CHECK_PROG(FOP,fop,fop,[])
AC_CHECK_PROG(XSLTPROC,xsltproc,xsltproc,[])
AC_CHECK_PROG(XMLLINT,xmllint,xmllint,[])
AC_ARG_ENABLE(doc-maintenance,
AS_HELP_STRING([--enable-doc-maintenance],
[if set, enables all documentation options]),
[if test "$enableval" = "yes"; then
doc_default=1;
else
doc_default=0;
fi],
[doc_default=0])
BUILD_HTML=0
AC_SUBST(BUILD_HTML)
AC_ARG_ENABLE(html-doc,
AS_HELP_STRING([--enable-html-doc],
[whether to build HTML documents]),
[if test "$enableval" = "yes"; then
BUILD_HTML=1;
else
BUILD_HTML=0;
fi],
[BUILD_HTML=$doc_default])
BUILD_PDF=0
AC_SUBST(BUILD_PDF)
AC_ARG_ENABLE(pdf-doc,
AS_HELP_STRING([--enable-pdf-doc],
[whether to build PDF documents]),
[if test "$enableval" = "yes"; then
BUILD_PDF=1;
else
BUILD_PDF=0;
fi],
[BUILD_PDF=$doc_default])
VALIDATE_DOC=0
AC_SUBST(VALIDATE_DOC)
AC_ARG_ENABLE(validate-doc,
AS_HELP_STRING([--enable-validate-doc],
[whether to validate xml document source]),
[if test "$enableval" = "yes"; then
VALIDATE_DOC=1;
else
VALIDATE_DOC=0;
fi],
[VALIDATE_DOC=$doc_default])
AC_SUBST(OSS_FUZZ)
AC_ARG_ENABLE(oss-fuzz,
AS_HELP_STRING([--enable-oss-fuzz],
[if set, build static fuzzers for oss-fuzz]),
[if test "$enableval" = "yes"; then
OSS_FUZZ=1;
else
OSS_FUZZ=0;
fi],
[OSS_FUZZ=0])
if test "$VALIDATE_DOC" = "1"; then
if test "$XMLLINT" = ""; then
MISSING_XMLLINT=1
MISSING_ANY=1
fi
fi
if test "$BUILD_HTML" = "1"; then
if test "$XSLTPROC" = ""; then
MISSING_XSLTPROC=1
MISSING_ANY=1
fi
if test "$DOCBOOK_XHTML" = ""; then
MISSING_DOCBOOK_XHTML=1
MISSING_ANY=1
fi
fi
if test "$BUILD_PDF" = "1"; then
if test "$XSLTPROC" = ""; then
MISSING_XSLTPROC=1
MISSING_ANY=1
fi
if test "$DOCBOOK_FO" = ""; then
MISSING_DOCBOOK_FO=1
MISSING_ANY=1
fi
if test "$FOP" = ""; then
MISSING_FOP=1
MISSING_ANY=1
fi
fi
if test "$MISSING_ANY" = "1"; then
ISSUE_WARNINGS=1
fi
if test "$ISSUE_WARNINGS" = "1"; then
echo ""
echo ""
fi
if test "$MISSING_MAKE_381" = "1"; then
AC_MSG_WARN(gnu make >= 3.81 is required)
fi
if test "$MISSING_ZLIB_H" = "1"; then
AC_MSG_WARN(unable to find required header zlib.h)
fi
if test "$MISSING_ZLIB" = "1"; then
AC_MSG_WARN(unable to find required library z (or zlib))
fi
if test "$MISSING_JPEG_H" = "1"; then
AC_MSG_WARN(unable to find required header jpeglib.h)
fi
if test "$MISSING_JPEG" = "1"; then
AC_MSG_WARN(unable to find required library jpeg)
fi
if test "$MISSING_DOCBOOK_FO" = "1"; then
AC_MSG_WARN(docbook fo stylesheets are required to build PDF documentation)
fi
if test "$MISSING_DOCBOOK_XHTML" = "1"; then
AC_MSG_WARN(docbook xhmtl stylesheets are required to build HTML documentation)
fi
if test "$MISSING_FOP" = "1"; then
AC_MSG_WARN(apache fop is required to build PDF documentation)
fi
if test "$MISSING_XMLLINT" = "1"; then
AC_MSG_WARN(xmllint is required to validate documentation)
fi
if test "$MISSING_XSLTPROC" = "1"; then
AC_MSG_WARN(xsltproc is required to build documentation)
fi
if test "$ISSUE_WARNINGS" = "1"; then
echo ""
echo ""
fi
if test "$MISSING_ANY" = "1"; then
AC_MSG_ERROR(some required prerequisites were not found)
fi
# Do this last so it doesn't interfere with other tests.
if test "$USE_EXTERNAL_LIBS" = "1"; then
# Don't actually check for the presence of this -- we document that
# the user can run this and then edit autoconf.mk if they have too
# much trouble getting it to work with a different compiler.
CPPFLAGS="$CPPFLAGS -Iexternal-libs/include"
LDFLAGS="$LDFLAGS -Lexternal-libs/lib-$BUILDRULES$WINDOWS_WORDSIZE"
LIBS="$LIBS -lz -ljpeg"
fi
AC_OUTPUT
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