我正在尝试使用GNU Autotools编译程序。在我的configure.ac中，我有以下一行：
PKG_CHECK_MODULES([DEPS], [cairo], [], [AC_MSG_ERROR([Missing Cairo library])])
我的src/Makefile.am看起来像这样：
bin_PROGRAMS = main
main_SOURCES = main.cpp window.cpp window.h button.cpp button.h
main_CFLAGS = $(DEPS_CFLAGS)
main_LDFLAGS = $(DEPS_LIBS)
在我的Makefile中，我回复了$(DEPS_CFLAGS)和$(DEPS_LIBS)以确认它们具有正确的值。
但是，编译失败，说它找不到应该在CFLAGS中的头文件：
g++ -DPACKAGE_NAME=\"toolkit\" -DPACKAGE_TARNAME=\"toolkit\" -DPACKAGE_VERSION=\"0.0.1\" -DPACKAGE_STRING=\"toolkit\ 0.0.1\" -DPACKAGE_BUGREPORT=\"gsingh2011@gmail.com\" -DPACKAGE_URL=\"\" -DPACKAGE=\"toolkit\" -DVERSION=\"0.0.1\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE__BOOL=1 -I. -g -O2 -MT button.o -MD -MP -MF .deps/button.Tpo -c -o button.o button.cpp
button.cpp:4:23: fatal error: cairo-xcb.h: No such file or directory
#include <cairo-xcb.h>
^
compilation terminated.
make[1]: *** [button.o] Error 1
make[1]: Leaving directory `/mnt/ubuntu/home/gulshan/code/x11/toolkit/src'
make: *** [all-recursive] Error 1
这看起来像是生成该错误的目标。您可以看到它没有提及CFLAGS：
.cpp.o:
$(AM_V_CXX)$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
# $(AM_V_CXX)source='$<' object='$@' libtool=no \
# DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) \
# $(AM_V_CXX_no)$(CXXCOMPILE) -c -o $@ $<
我做错了什么？这是整个Makefile。您可以看到甚至没有使用main_CFLAGS和main_LDFLAGS。
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# with or without modifications, as long as this notice is preserved.
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install-ps-am:
installcheck-am:
maintainer-clean: maintainer-clean-am
-rm -rf ./$(DEPDIR)
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
mostlyclean: mostlyclean-am
mostlyclean-am: mostlyclean-compile mostlyclean-generic
pdf: pdf-am
pdf-am:
ps: ps-am
ps-am:
uninstall-am: uninstall-binPROGRAMS
.MAKE: install-am install-strip
.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean \
clean-binPROGRAMS clean-generic cscopelist-am ctags ctags-am \
distclean distclean-compile distclean-generic distclean-tags \
distdir dvi dvi-am html html-am info info-am install \
install-am install-binPROGRAMS install-data install-data-am \
install-dvi install-dvi-am install-exec install-exec-am \
install-html install-html-am install-info install-info-am \
install-man install-pdf install-pdf-am install-ps \
install-ps-am install-strip installcheck installcheck-am \
installdirs maintainer-clean maintainer-clean-generic \
mostlyclean mostlyclean-compile mostlyclean-generic pdf pdf-am \
ps ps-am tags tags-am uninstall uninstall-am \
uninstall-binPROGRAMS
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:
答案 0 :(得分：2)
这看起来像是生成该错误的目标。您可以看到它没有提及有关CFLAGS的任何信息：
右。您正在使用C ++编译器，而不是C编译器：
main_SOURCES = main.cpp window.cpp window.h button.cpp button.h
类似的东西：
main_CXXFLAGS = $(DEPS_CFLAGS)
可能足以超越您的编译错误。