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e96be1888a
We need dependent packages to be able to include zfs_config.h to build properly. This was partially solved previously be using AH_BOTTOM to #undef common #defines (PACKAGE, VERSION, etc) which autoconf always adds and cannot be easily removed. This solution works as long as the zfs_config.h is included before your projects config.h. That turns out to be easier said than done. In particular, this is a problem when your package includes its config.h using the -include gcc option which ensures the first thing included is your config.h. To handle all cases cleanly I have removed the AH_BOTTOM hack and replaced it with an AC_CONFIG_HEADERS command. This command runs immediately after zfs_config.h is written and with a little awk-foo it strips the offending #defines from the file. This eliminates the problem entirely and makes header safe for inclusion.
16 lines
334 B
Awk
16 lines
334 B
Awk
# Remove default preprocessor define's from config.h
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# PACKAGE
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# PACKAGE_BUGREPORT
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# PACKAGE_NAME
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# PACKAGE_STRING
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# PACKAGE_TARNAME
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# PACKAGE_VERSION
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# STDC_HEADERS
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# VERSION
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BEGIN { RS = "" ; FS = "\n" } \
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!/.#define PACKAGE./ && \
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!/.#define VERSION./ && \
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!/.#define STDC_HEADERS./ \
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{ print $0"\n" }
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