31 lines
1.3 KiB
Diff
31 lines
1.3 KiB
Diff
commit 14fde40ec7066c788b27fac7d6de64e8ada43520
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Author: George Bosilca <bosilca@icl.utk.edu>
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Date: Fri Mar 12 13:38:10 2021 -0500
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Always include the stddef.h header.
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Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
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diff --git configure.ac configure.ac
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index f553cff725af..fa1adf12bd2c 100644
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--- configure.ac
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+++ configure.ac
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@@ -1290,10 +1290,13 @@ OPAL_SETUP_WRAPPER_FINAL
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# autoconf macro defines in mpi.h. Since AC sometimes changes whether
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# things are defined as null tokens or an integer result, two projects
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# with different versions of AC can cause problems.
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-if test $ac_cv_header_stdc = yes; then
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- AC_DEFINE(OPAL_STDC_HEADERS, 1,
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- [Do not use outside of mpi.h. Define to 1 if you have the ANSI C header files.])
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-fi
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+
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+# According to the autoconf 2.67 documentation the AC_HEADER_STDC macro,
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+# and therefore the ac_cv_header_stdc cache variable, is obsolescent, as
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+# current systems have conforming header files. Instead of removing the
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+# protection completely, let's just make sure it is always on.
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+AC_DEFINE(OPAL_STDC_HEADERS, 1,
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+ [Do not use outside of mpi.h. Define to 1 if you have the ANSI C header files.])
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if test $ac_cv_header_sys_time_h = yes ; then
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AC_DEFINE(OPAL_HAVE_SYS_TIME_H, 1,
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[Do not use outside of mpi.h. Define to 1 if you have the <sys/time.h> header file.])
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