build: Don't cross-compile GLSL builtin compiler
The builtin_compiler binary is used during the build process to generate
code for the builtin GLSL functions. Since this binary needs to be run
on the build host, it must not be cross-compiled.
This patch fixes the build system to compile a second version of the
source files and the builtin_compiler binary itself for the build
system. It does so by defining the CC_FOR_BUILD and CXX_FOR_BUILD
variables, which are searched for by the configure script and point to
the location of native C and C++ compilers.
In order for this to work properly, builtin_function.cpp is removed
from BUILT_SOURCES, otherwise the build system would try to generate it
before having had a chance to descend into the builtin_compiler
subdirectory. With the builtin_compiler and glsl_compiler now being
generated at different stages, the build instructions for glsl_compiler
can be simplified a bit.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
diff --git a/configure.ac b/configure.ac
index 6b97a26..d42462e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@
[https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa])
AC_CONFIG_AUX_DIR([bin])
AC_CONFIG_MACRO_DIR([m4])
-AC_CANONICAL_HOST
+AC_CANONICAL_SYSTEM
AM_INIT_AUTOMAKE([foreign])
dnl http://people.gnome.org/~walters/docs/build-api.txt
@@ -24,9 +24,6 @@
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
-LT_PREREQ([2.2])
-LT_INIT([disable-static])
-
dnl Set internal versions
OSMESA_VERSION=8
AC_SUBST([OSMESA_VERSION])
@@ -45,7 +42,9 @@
dnl Check for progs
AC_PROG_CPP
AC_PROG_CC
+AX_PROG_CC_FOR_BUILD
AC_PROG_CXX
+AX_PROG_CXX_FOR_BUILD
AM_PROG_CC_C_O
AM_PROG_AS
AC_CHECK_PROGS([MAKE], [gmake make])
@@ -54,6 +53,9 @@
AC_PROG_MKDIR_P
AC_PATH_PROG([MKDEP], [makedepend])
+LT_PREREQ([2.2])
+LT_INIT([disable-static])
+
if test "x$MKDEP" = "x"; then
AC_MSG_ERROR([makedepend is required to build Mesa])
fi
@@ -155,6 +157,21 @@
_SAVE_LDFLAGS="$LDFLAGS"
_SAVE_CPPFLAGS="$CPPFLAGS"
+dnl build host compiler macros
+DEFINES_FOR_BUILD=""
+AC_SUBST([DEFINES_FOR_BUILD])
+case "$build_os" in
+linux*|*-gnu*|gnu*)
+ DEFINES_FOR_BUILD="$DEFINES_FOR_BUILD -D_GNU_SOURCE"
+ ;;
+solaris*)
+ DEFINES_FOR_BUILD="$DEFINES_FOR_BUILD -DSVR4"
+ ;;
+cygwin*)
+ DEFINES_FOR_BUILD="$DEFINES_FOR_BUILD"
+ ;;
+esac
+
dnl Compiler macros
DEFINES=""
AC_SUBST([DEFINES])
@@ -177,6 +194,7 @@
CFLAGS="$CFLAGS -Wall -std=gnu99"
;;
*)
+ CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD -Wall -std=c99"
CFLAGS="$CFLAGS -Wall -std=c99"
;;
esac
@@ -206,13 +224,16 @@
CFLAGS=$save_CFLAGS
# Work around aliasing bugs - developers should comment this out
+ CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD -fno-strict-aliasing"
CFLAGS="$CFLAGS -fno-strict-aliasing"
# gcc's builtin memcmp is slower than glibc's
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052
+ CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD -fno-builtin-memcmp"
CFLAGS="$CFLAGS -fno-builtin-memcmp"
fi
if test "x$GXX" = xyes; then
+ CXXFLAGS_FOR_BUILD="$CXXFLAGS_FOR_BUILD -Wall"
CXXFLAGS="$CXXFLAGS -Wall"
# Enable -fvisibility=hidden if using a gcc that supports it
@@ -229,10 +250,12 @@
CXXFLAGS=$save_CXXFLAGS
# Work around aliasing bugs - developers should comment this out
+ CXXFLAGS_FOR_BUILD="$CXXFLAGS_FOR_BUILD -fno-strict-aliasing"
CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
# gcc's builtin memcmp is slower than glibc's
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052
+ CXXFLAGS_FOR_BUILD="$CXXFLAGS_FOR_BUILD -fno-builtin-memcmp"
CXXFLAGS="$CXXFLAGS -fno-builtin-memcmp"
fi
@@ -316,6 +339,14 @@
[enable_debug=no]
)
if test "x$enable_debug" = xyes; then
+ DEFINES_FOR_BUILD="$DEFINES_FOR_BUILD -DDEBUG"
+ if test "x$GCC_FOR_BUILD" = xyes; then
+ CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD -g"
+ fi
+ if test "x$GXX_FOR_BUILD" = xyes; then
+ CXXFLAGS_FOR_BUILD="$CXXFLAGS_FOR_BUILD -g"
+ fi
+
DEFINES="$DEFINES -DDEBUG"
if test "x$GCC" = xyes; then
CFLAGS="$CFLAGS -g"
@@ -1940,6 +1971,7 @@
src/gbm/Makefile
src/gbm/main/gbm.pc
src/glsl/Makefile
+ src/glsl/builtin_compiler/Makefile
src/glsl/glcpp/Makefile
src/glsl/tests/Makefile
src/glx/Makefile