From 4c0a6ed01fb1aab578dc6ac29f11524a3883e14f Mon Sep 17 00:00:00 2001 From: Gustavo Zacarias Date: Wed, 20 Apr 2016 13:16:58 -0300 Subject: [PATCH] build: add check for clock_gettime() in librt In older versions of glibc (< 2.17) clock_gettime() is in librt, hence linking against librt is required when using it. Add a configure check for this and replace all instances of -lrt in Makefile.am with $(CLOCK_GETTIME_LIBS). Signed-off-by: Gustavo Zacarias --- Status: submitted upstream Makefile.am | 15 ++++++++------- configure.ac | 5 +++++ 2 files changed, 13 insertions(+), 7 deletions(-) diff --git a/Makefile.am b/Makefile.am index d3c3f71..c042c68 100644 --- a/Makefile.am +++ b/Makefile.am @@ -65,7 +65,7 @@ weston_LDFLAGS = -export-dynamic weston_CPPFLAGS = $(AM_CPPFLAGS) -DIN_WESTON weston_CFLAGS = $(AM_CFLAGS) $(COMPOSITOR_CFLAGS) $(LIBUNWIND_CFLAGS) weston_LDADD = $(COMPOSITOR_LIBS) $(LIBUNWIND_LIBS) \ - $(DLOPEN_LIBS) -lm -lrt libshared.la + $(DLOPEN_LIBS) -lm $(CLOCK_GETTIME_LIBS) libshared.la weston_SOURCES = \ src/git-version.h \ @@ -270,7 +270,8 @@ drm_backend_la_LIBADD = \ $(COMPOSITOR_LIBS) \ $(DRM_COMPOSITOR_LIBS) \ $(INPUT_BACKEND_LIBS) \ - libshared.la -lrt \ + libshared.la \ + $(CLOCK_GETTIME_LIBS) \ libsession-helper.la drm_backend_la_CFLAGS = \ $(COMPOSITOR_CFLAGS) \ @@ -508,11 +509,11 @@ nodist_weston_presentation_shm_SOURCES = \ protocol/presentation-time-protocol.c \ protocol/presentation-time-client-protocol.h weston_presentation_shm_CFLAGS = $(AM_CFLAGS) $(SIMPLE_CLIENT_CFLAGS) -weston_presentation_shm_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la -lm -lrt +weston_presentation_shm_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la -lm $(CLOCK_GETTIME_LIBS) weston_multi_resource_SOURCES = clients/multi-resource.c weston_multi_resource_CFLAGS = $(AM_CFLAGS) $(SIMPLE_CLIENT_CFLAGS) -weston_multi_resource_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la -lrt -lm +weston_multi_resource_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la $(CLOCK_GETTIME_LIBS) -lm endif if BUILD_SIMPLE_EGL_CLIENTS @@ -580,7 +581,7 @@ BUILT_SOURCES += $(nodist_libtoytoolkit_la_SOURCES) libtoytoolkit_la_LIBADD = \ $(CLIENT_LIBS) \ $(CAIRO_EGL_LIBS) \ - libshared-cairo.la -lrt -lm + libshared-cairo.la $(CLOCK_GETTIME_LIBS) -lm libtoytoolkit_la_CFLAGS = $(AM_CFLAGS) $(CLIENT_CFLAGS) $(CAIRO_EGL_CFLAGS) weston_flower_SOURCES = clients/flower.c @@ -1181,7 +1182,7 @@ vertex_clip_test_SOURCES = \ shared/helpers.h \ src/vertex-clipping.c \ src/vertex-clipping.h -vertex_clip_test_LDADD = libtest-runner.la -lm -lrt +vertex_clip_test_LDADD = libtest-runner.la -lm $(CLOCK_GETTIME_LIBS) libtest_client_la_SOURCES = \ tests/weston-test-client-helper.c \ @@ -1269,7 +1270,7 @@ matrix_test_SOURCES = \ shared/matrix.c \ shared/matrix.h matrix_test_CPPFLAGS = -DUNIT_TEST -matrix_test_LDADD = -lm -lrt +matrix_test_LDADD = -lm $(CLOCK_GETTIME_LIBS) if ENABLE_IVI_SHELL module_tests += \ diff --git a/configure.ac b/configure.ac index 447cf6b..670200c 100644 --- a/configure.ac +++ b/configure.ac @@ -46,6 +46,11 @@ AC_CHECK_FUNC([dlopen], [], AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl")) AC_SUBST(DLOPEN_LIBS) +# In old glibc versions (< 2.17) clock_gettime() is in librt +AC_SEARCH_LIBS([clock_gettime], [rt], + [CLOCK_GETTIME_LIBS="-lrt"]) +AC_SUBST([CLOCK_GETTIME_LIBS]) + AC_CHECK_DECL(SFD_CLOEXEC,[], [AC_MSG_ERROR("SFD_CLOEXEC is needed to compile weston")], [[#include ]]) -- 2.7.3