add qpdf-ctest as C test program

git-svn-id: svn+q:///qpdf/trunk@726 71b93d88-0707-0410-a8cf-f5a4172ac649

make/rules.mk

@@ -4,6 +4,11 @@ define src_to_obj
 $(foreach F,$(1),$(dir $(F))$(OUTPUT_DIR)/$(patsubst %.cc,%.o,$(notdir $(F))))
 endef
 
+# Usage: $(call c_src_to_obj,srcs)
+define c_src_to_obj
+$(foreach F,$(1),$(dir $(F))$(OUTPUT_DIR)/$(patsubst %.c,%.o,$(notdir $(F))))
+endef
+
 # Usage: $(call src_to_lobj,srcs)
 define src_to_lobj
 $(foreach F,$(1),$(dir $(F))$(OUTPUT_DIR)/$(patsubst %.cc,%.lo,$(notdir $(F))))
@@ -46,6 +51,15 @@ define compile
 		-c $(1) -o $(call src_to_obj,$(1))
 endef
 
+#                       1   2
+# Usage: $(call c_compile,src,includes)
+define c_compile
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		$(call depflags,$(basename $(call src_to_obj,$(1)))) \
+		$(foreach I,$(2),-I$(I)) \
+		-c $(1) -o $(call c_src_to_obj,$(1))
+endef
+
 #                          1   2
 # Usage: $(call libcompile,src,includes)
 define libcompile

qpdf/build.mk

@@ -1,6 +1,7 @@
 BINS_qpdf = qpdf test_driver
+CBINS_qpdf = qpdf-ctest
 
-TARGETS_qpdf = $(foreach B,$(BINS_qpdf),qpdf/$(OUTPUT_DIR)/$(B))
+TARGETS_qpdf = $(foreach B,$(BINS_qpdf) $(CBINS_qpdf),qpdf/$(OUTPUT_DIR)/$(B))
 
 $(TARGETS_qpdf): $(TARGETS_libqpdf)
 
@@ -12,6 +13,8 @@ TC_SRCS_qpdf = $(wildcard libqpdf/*.cc) $(wildcard qpdf/*.cc)
 
 $(foreach B,$(BINS_qpdf),$(eval \
   OBJS_$(B) = $(call src_to_obj,qpdf/$(B).cc)))
+$(foreach B,$(CBINS_qpdf),$(eval \
+  OBJS_$(B) = $(call c_src_to_obj,qpdf/$(B).c)))
 
 ifeq ($(GENDEPS),1)
 -include $(foreach B,$(BINS_qpdf),$(call obj_to_dep,$(OBJS_$(B))))
@@ -21,6 +24,10 @@ $(foreach B,$(BINS_qpdf),$(eval \
   $(OBJS_$(B)): qpdf/$(OUTPUT_DIR)/%.o: qpdf/$(B).cc ; \
 	$(call compile,qpdf/$(B).cc,$(INCLUDES_qpdf))))
 
-$(foreach B,$(BINS_qpdf),$(eval \
+$(foreach B,$(CBINS_qpdf),$(eval \
+  $(OBJS_$(B)): qpdf/$(OUTPUT_DIR)/%.o: qpdf/$(B).c ; \
+	$(call c_compile,qpdf/$(B).c,$(INCLUDES_qpdf))))
+
+$(foreach B,$(BINS_qpdf) $(CBINS_qpdf),$(eval \
   qpdf/$(OUTPUT_DIR)/$(B): $(OBJS_$(B)) ; \
 	$(call makebin,$(OBJS_$(B)),$$@)))

qpdf/qpdf-ctest.c

@@ -0,0 +1,6 @@
+#include <qpdf/qpdf-c.h>
+
+int main()
+{
+    return 0;
+}