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POHow to compile c99-to-c89 convertor with clang?
 

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  1. POHow to compile c99-to-c89 convertor with clang?
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    <p>I'm trying to compile ffmpeg in windows for VisualStudio and one of the step is to compile <a href="https://github.com/rbultje/c99-to-c89" rel="nofollow">c99-to-c89</a> code with clang according to <a href="http://blogs.gnome.org/rbultje/2012/09/27/microsoft-visual-studio-support-in-ffmpeg-and-libav/" rel="nofollow">this</a> post. I managed to create clang.exe but how I compile c99-to-c89 code with it?</p> <p>I changed a little bit the makefile in c99-to-c89 so <code>CC</code> variable points now to clang.exe compiler and not cl.exe</p> <pre><code>EXT=.exe all: c99conv$(EXT) c99wrap$(EXT) CLANGDIR=C:/build CC=C:/build/bin/Release/clang.exe CFLAGS=-nologo -Z7 -D_CRT_SECURE_NO_WARNINGS=1 -Dpopen=_popen -Dunlink=_unlink -Dstrdup=_strdup -Dsnprintf=_snprintf -I. -I$(CLANGDIR)/tools/clang/include LDFLAGS=-nologo -Z7 $(CLANGDIR)/lib/Release/libclang.lib clean: rm -f c99conv$(EXT) c99wrap$(EXT) convert.o compilewrap.o rm -f unit.c.c unit2.c.c test1: c99conv$(EXT) $(CC) -P unit.c -Fiunit.prev.c ./c99conv unit.prev.c unit.post.c diff -u unit.{prev,post}.c test2: c99conv$(EXT) $(CC) -P unit2.c -Fiunit2.prev.c ./c99conv unit2.prev.c unit2.post.c diff -u unit2.{prev,post}.c test3: c99conv$(EXT) $(CC) $(CFLAGS) -P -Ficonvert.prev.c convert.c ./c99conv convert.prev.c convert.post.c diff -u convert.{prev,post}.c c99conv$(EXT): convert.o $(CC) -Fe$@ $&lt; $(LDFLAGS) $(LIBS) c99wrap$(EXT): compilewrap.o $(CC) -Fe$@ $&lt; $(LDFLAGS) %.o: %.c $(CC) $(CFLAGS) -Fo$@ -c $&lt; </code></pre> <p>but when I run <code>make</code> command I get <code>clang: error: unsupported use of internal gcc -Z option '-Z7'</code>. I guess the problem in <code>CFLAGS</code> and <code>LDFLAGS</code> but I don't know how to fix it because the lack of knowledge in makefile and clang.</p>
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      1. POHow to compile c99-to-c89 convertor with clang?
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    1. COYou can find a pre-compiled binary [here](http://git.chromium.org/gitweb/?p=chromium/third_party/ffmpeg.git;a=tree;f=chromium/binaries).
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      1. POHow to compile c99-to-c89 convertor with clang?
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    2. CO@lorcap, did u succeeded to compile and debug ffmpeg with VisualStudio?
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    3. CONo, I haven't even tried. The binary I found suits my needs.
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      1. POHow to compile c99-to-c89 convertor with clang?
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