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From dbf8fd1d097420d02f0603155ca81fcc7e232a0a Mon Sep 17 00:00:00 2001
From: Lionel Landwerlin <llandwerlin@gmail.com>
Date: Sun, 7 Nov 2010 21:45:19 +0100
Subject: [PATCH] Add -lm flag when nedded
Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com>
---
configure.in | 14 ++++++++++++++
src/media/Makefile.am | 2 +-
2 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/configure.in b/configure.in
index 78c842d..aa608d4 100644
--- a/configure.in
+++ b/configure.in
@@ -533,6 +533,20 @@ AM_CONDITIONAL(DIRECTFB_BUILD_PURE_VOODOO, test "$DIRECTFB_BUILD_PURE_VOODOO" =
AC_SUBST(DEP_VOODOO)
+dnl If we're not building a pure voodoo lib, we need the sqrt symbol
+dnl for src/media/idirectfbfont.c
+MEDIALIB=""
+if test "$enable_pure_voodoo" = "no"; then
+ AC_CHECK_LIB(m, sqrt,
+ MEDIALIB="-lm",
+ AC_MSG_ERROR([
+*** DirectFB requires libm.]))
+ if test "$enable_shared" = "yes"; then
+ DYNLIB+=" $MEDIALIB"
+ AC_SUBST(DYNLIB)
+ fi
+fi
+AC_SUBST(MEDIALIB)
AM_CONDITIONAL(ENABLE_MULTI, test "$enable_multi" = "yes")
diff --git a/src/media/Makefile.am b/src/media/Makefile.am
index 1a39a25..a4bdb10 100644
--- a/src/media/Makefile.am
+++ b/src/media/Makefile.am
@@ -35,4 +35,4 @@ libdirectfb_media_la_SOURCES = \
idirectfbdatabuffer_file.c \
idirectfbdatabuffer_memory.c \
idirectfbdatabuffer_streamed.c
-
+libdirectfb_media_la_LDFLAGS = $(MEDIALIB)
--
1.7.2.3
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