From a8ce872118c4807465629aecb9e4f3d72d999ccb Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Tue, 26 Jan 2016 22:36:39 -0500 Subject: [PATCH] release: always link librt for glibc back-compat builds glibc absorbed clock_gettime in 2.17. librt (its previous location) is safe to link in anyway for back-compat. Fixes #7420 --- configure.ac | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/configure.ac b/configure.ac index 9a6d0b3b198..921b26a9404 100644 --- a/configure.ac +++ b/configure.ac @@ -411,6 +411,10 @@ AX_GCC_FUNC_ATTRIBUTE([dllimport]) if test x$use_glibc_compat != xno; then + #glibc absorbed clock_gettime in 2.17. librt (its previous location) is safe to link + #in anyway for back-compat. + AC_CHECK_LIB([rt],[clock_gettime],, AC_MSG_ERROR(lib missing)) + #__fdelt_chk's params and return type have changed from long unsigned int to long int. # See which one is present here. AC_MSG_CHECKING(__fdelt_chk type) @@ -424,7 +428,8 @@ if test x$use_glibc_compat != xno; then [ fdelt_type="long int"]) AC_MSG_RESULT($fdelt_type) AC_DEFINE_UNQUOTED(FDELT_TYPE, $fdelt_type,[parameter and return value type for __fdelt_chk]) - +else + AC_SEARCH_LIBS([clock_gettime],[rt]) fi if test x$TARGET_OS != xwindows; then @@ -491,8 +496,6 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [ AC_MSG_RESULT(no)] ) -AC_SEARCH_LIBS([clock_gettime],[rt]) - AC_MSG_CHECKING([for visibility attribute]) AC_LINK_IFELSE([AC_LANG_SOURCE([ int foo_def( void ) __attribute__((visibility("default")));