From 0785c522f076cbb8c53d93028c92aa2ea0490a9a Mon Sep 17 00:00:00 2001 From: Andreas Schneider Date: Sun, 5 Sep 2010 12:55:02 +0200 Subject: [PATCH] build: Fixed build with gcc 3.4. The -fvisibility=hidden flag is broken in gcc 3.4. This fixes the build on CentOS, bug #74. --- ConfigureChecks.cmake | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake index 6b799b45..95592db2 100644 --- a/ConfigureChecks.cmake +++ b/ConfigureChecks.cmake @@ -16,8 +16,24 @@ set(SYSCONFDIR ${SYSCONF_INSTALL_DIR}) set(BINARYDIR ${CMAKE_BINARY_DIR}) set(SOURCEDIR ${CMAKE_SOURCE_DIR}) +function(COMPILER_DUMPVERSION _OUTPUT_VERSION) + execute_process( + COMMAND + ${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1} -dumpversion + OUTPUT_VARIABLE _COMPILER_VERSION + ) + + string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2" + _COMPILER_VERSION ${_COMPILER_VERSION}) + + set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE) +endfunction() + if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW) -check_c_compiler_flag("-fvisibility=hidden" WITH_VISIBILITY_HIDDEN) + compiler_dumpversion(GNUCC_VERSION) + if (GNUCC_VERSION EQUAL 34) + check_c_compiler_flag("-fvisibility=hidden" WITH_VISIBILITY_HIDDEN) + endif (GNUCC_VERSION EQUAL 34) endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW) # HEADER FILES