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author | Sam Thursfield <sam.thursfield@codethink.co.uk> | 2013-01-14 13:44:26 +0000 |
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committer | Sam Thursfield <sam.thursfield@codethink.co.uk> | 2013-01-14 13:44:26 +0000 |
commit | da85052823342b1be9e21b878df91a572040d371 (patch) | |
tree | f67cd86a6e6d8ea28e716aaf8eaa60519cce2750 /m4/clock_time.m4 | |
parent | 7730f8304e68bef887dbf98dd4eecdb61e7d3ebb (diff) | |
download | patch-baserock/build-essential.tar.gz |
Fix up tarball import.baserock/build-essential
ALWAYS REMOVE ALL INSTANCES OF .gitignore.
Diffstat (limited to 'm4/clock_time.m4')
-rw-r--r-- | m4/clock_time.m4 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/m4/clock_time.m4 b/m4/clock_time.m4 new file mode 100644 index 0000000..0bec0ef --- /dev/null +++ b/m4/clock_time.m4 @@ -0,0 +1,31 @@ +# clock_time.m4 serial 10 +dnl Copyright (C) 2002-2006, 2009-2012 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Check for clock_gettime and clock_settime, and set LIB_CLOCK_GETTIME. +# For a program named, say foo, you should add a line like the following +# in the corresponding Makefile.am file: +# foo_LDADD = $(LDADD) $(LIB_CLOCK_GETTIME) + +AC_DEFUN([gl_CLOCK_TIME], +[ + dnl Persuade glibc and Solaris <time.h> to declare these functions. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function. + # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4. + + # Save and restore LIBS so e.g., -lrt, isn't added to it. Otherwise, *all* + # programs in the package would end up linked with that potentially-shared + # library, inducing unnecessary run-time overhead. + LIB_CLOCK_GETTIME= + AC_SUBST([LIB_CLOCK_GETTIME]) + gl_saved_libs=$LIBS + AC_SEARCH_LIBS([clock_gettime], [rt posix4], + [test "$ac_cv_search_clock_gettime" = "none required" || + LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime]) + AC_CHECK_FUNCS([clock_gettime clock_settime]) + LIBS=$gl_saved_libs +]) |