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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/c-ares/m4/cares-override.m4 | |
parent | Initial commit. (diff) | |
download | ceph-upstream.tar.xz ceph-upstream.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/c-ares/m4/cares-override.m4')
-rw-r--r-- | src/c-ares/m4/cares-override.m4 | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/c-ares/m4/cares-override.m4 b/src/c-ares/m4/cares-override.m4 new file mode 100644 index 000000000..c7400fc9c --- /dev/null +++ b/src/c-ares/m4/cares-override.m4 @@ -0,0 +1,76 @@ +#*************************************************************************** +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 8 + +dnl CARES_OVERRIDE_AUTOCONF +dnl ------------------------------------------------- +dnl Placing a call to this macro in configure.ac after +dnl the one to AC_INIT will make macros in this file +dnl visible to the rest of the compilation overriding +dnl those from Autoconf. + +AC_DEFUN([CARES_OVERRIDE_AUTOCONF], [ +AC_BEFORE([$0],[AC_PROG_LIBTOOL]) +# using cares-override.m4 +]) + +dnl Override Autoconf's AC_LANG_PROGRAM (C) +dnl ------------------------------------------------- +dnl This is done to prevent compiler warning +dnl 'function declaration isn't a prototype' +dnl in function main. This requires at least +dnl a c89 compiler and does not suport K&R. + +m4_define([AC_LANG_PROGRAM(C)], +[$1 +int main (void) +{ +$2 + ; + return 0; +}]) + +dnl Override Autoconf's AC_LANG_CALL (C) +dnl ------------------------------------------------- +dnl This is a backport of Autoconf's 2.60 with the +dnl embedded comments that hit the resulting script +dnl removed. This is done to reduce configure size +dnl and use fixed macro across Autoconf versions. + +m4_define([AC_LANG_CALL(C)], +[AC_LANG_PROGRAM([$1 +m4_if([$2], [main], , +[ +#ifdef __cplusplus +extern "C" +#endif +char $2 ();])], [return $2 ();])]) + +dnl Override Autoconf's AC_LANG_FUNC_LINK_TRY (C) +dnl ------------------------------------------------- +dnl This is a backport of Autoconf's 2.60 with the +dnl embedded comments that hit the resulting script +dnl removed. This is done to reduce configure size +dnl and use fixed macro across Autoconf versions. + +m4_define([AC_LANG_FUNC_LINK_TRY(C)], +[AC_LANG_PROGRAM( +[ +#define $1 innocuous_$1 +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif +#undef $1 +#ifdef __cplusplus +extern "C" +#endif +char $1 (); +#if defined __stub_$1 || defined __stub___$1 +choke me +#endif +], [return $1 ();])]) + |