[Fink-devel] OT: M4 the SDL Framework
I raised an issue with the libSDL project that their provided automake
macro is incapable of detecting and configuring their provided runtime
framework. Sam Lantinga responded with: I typically build and install SDL on
Mac OS X using the unix style configure/install which works fine. Can you
submit a patch for sdl.m4 which does the right thing for you? I'm attaching
the file for you. I don't speak M4 and have only rudimentary understanding of
frameworks. However, it does seem like the macro is searching for a file
called 'sdl-config' and i don't see such a file inside the SDL framework. At
this point i'm not sure if:
1) 'sdl-config' is in the framework but hidden.
2) The framework needs to be built differently to include 'sdl-config'.
3) The macro needs to test for some other file inside the framework.
Here is the M4 file:
# Configure paths for SDL
# Sam Lantinga 9/21/99
# stolen from Manish Singh
# stolen back from Frank Belew
# stolen from Manish Singh
# Shamelessly stolen from Owen Taylor
# serial 1
dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
dnl
AC_DEFUN([AM_PATH_SDL2],
[dnl
dnl Get the cflags and libraries from the sdl2-config script
dnl
AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is
installed (optional)],
sdl_prefix=$withval, sdl_prefix=)
AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where
SDL is installed (optional)],
sdl_exec_prefix=$withval, sdl_exec_prefix=)
AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and
run a test SDL program],
, enable_sdltest=yes)
min_sdl_version=ifelse([$1], ,0.9.0,$1)
if test x$sdl_prefix$sdl_exec_prefix = x ; then
PKG_CHECK_MODULES([SDL], [sdl2 = $min_sdl_version],
[sdl_pc=yes],
[sdl_pc=no])
else
sdl_pc=no
if test x$sdl_exec_prefix != x ; then
sdl_config_args=$sdl_config_args --exec-prefix=$sdl_exec_prefix
if test x${SDL_CONFIG+set} != xset ; then
SDL_CONFIG=$sdl_exec_prefix/bin/sdl2-config
fi
fi
if test x$sdl_prefix != x ; then
sdl_config_args=$sdl_config_args --prefix=$sdl_prefix
if test x${SDL_CONFIG+set} != xset ; then
SDL_CONFIG=$sdl_prefix/bin/sdl2-config
fi
fi
fi
if test x$sdl_pc = xyes ; then
no_sdl=
SDL_CONFIG=pkg-config sdl2
else
as_save_PATH=$PATH
if test x$prefix != xNONE test $cross_compiling != yes; then
PATH=$prefix/bin:$prefix/usr/bin:$PATH
fi
AC_PATH_PROG(SDL_CONFIG, sdl2-config, no, [$PATH])
PATH=$as_save_PATH
AC_MSG_CHECKING(for SDL - version = $min_sdl_version)
no_sdl=
if test $SDL_CONFIG = no ; then
no_sdl=yes
else
SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags`
SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs`
sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test x$enable_sdltest = xyes ; then
ac_save_CFLAGS=$CFLAGS
ac_save_CXXFLAGS=$CXXFLAGS
ac_save_LIBS=$LIBS
CFLAGS=$CFLAGS $SDL_CFLAGS
CXXFLAGS=$CXXFLAGS $SDL_CFLAGS
LIBS=$LIBS $SDL_LIBS
dnl
dnl Now check if the installed SDL is sufficiently new. (Also sanity
dnl checks the results of sdl2-config to some extent
dnl
rm -f conf.sdltest
AC_TRY_RUN([
#include stdio.h
#include stdlib.h
#include string.h
#include SDL.h
char*
my_strdup (char *str)
{
char *new_str;
if (str)
{
new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
strcpy (new_str, str);
}
else
new_str = NULL;
return new_str;
}
int main (int argc, char *argv[])
{
int major, minor, micro;
char *tmp_version;
/* This hangs on some systems (?)
system (touch conf.sdltest);
*/
{ FILE *fp = fopen(conf.sdltest, a); if ( fp ) fclose(fp); }
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = my_strdup($min_sdl_version);
if (sscanf(tmp_version, %d.%d.%d, major, minor, micro) != 3) {
printf(%s, bad version string\n, $min_sdl_version);
exit(1);
}
if (($sdl_major_version major) ||
(($sdl_major_version == major) ($sdl_minor_version minor)) ||
(($sdl_major_version == major) ($sdl_minor_version == minor)
($sdl_micro_version = micro)))
{
return 0;
}
else
{
printf(\n*** 'sdl2-config --version' returned %d.%d.%d, but the
minimum version\n, $sdl_major_version,
Re: [Fink-devel] OT: M4 the SDL Framework
dpkg -S sdl-config
sdl: /sw/bin/sdl-config
sdl is the dev files for fink installed sdl, I'm not sure what you are trying
to build that needs sdl but it likely just does no know about your fink
installation. Check that you have sdl installed, if you do then check whatever
you are trying use sdl with to see if configure has an --sdl-prefix type switch
to tell it that it's in whatever your fink install is, default /sw
---
TS
http://www.southofheaven.org/
Life begins and ends with chaos, live between the chaos!
On 2012-07-31, at 5:05 PM, David Lowe wrote:
I raised an issue with the libSDL project that their provided automake
macro is incapable of detecting and configuring their provided runtime
framework. Sam Lantinga responded with: I typically build and install SDL
on Mac OS X using the unix style configure/install which works fine. Can you
submit a patch for sdl.m4 which does the right thing for you? I'm attaching
the file for you. I don't speak M4 and have only rudimentary understanding
of frameworks. However, it does seem like the macro is searching for a file
called 'sdl-config' and i don't see such a file inside the SDL framework. At
this point i'm not sure if:
1) 'sdl-config' is in the framework but hidden.
2) The framework needs to be built differently to include 'sdl-config'.
3) The macro needs to test for some other file inside the framework.
Here is the M4 file:
# Configure paths for SDL
# Sam Lantinga 9/21/99
# stolen from Manish Singh
# stolen back from Frank Belew
# stolen from Manish Singh
# Shamelessly stolen from Owen Taylor
# serial 1
dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
dnl
AC_DEFUN([AM_PATH_SDL2],
[dnl
dnl Get the cflags and libraries from the sdl2-config script
dnl
AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is
installed (optional)],
sdl_prefix=$withval, sdl_prefix=)
AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where
SDL is installed (optional)],
sdl_exec_prefix=$withval, sdl_exec_prefix=)
AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and
run a test SDL program],
, enable_sdltest=yes)
min_sdl_version=ifelse([$1], ,0.9.0,$1)
if test x$sdl_prefix$sdl_exec_prefix = x ; then
PKG_CHECK_MODULES([SDL], [sdl2 = $min_sdl_version],
[sdl_pc=yes],
[sdl_pc=no])
else
sdl_pc=no
if test x$sdl_exec_prefix != x ; then
sdl_config_args=$sdl_config_args --exec-prefix=$sdl_exec_prefix
if test x${SDL_CONFIG+set} != xset ; then
SDL_CONFIG=$sdl_exec_prefix/bin/sdl2-config
fi
fi
if test x$sdl_prefix != x ; then
sdl_config_args=$sdl_config_args --prefix=$sdl_prefix
if test x${SDL_CONFIG+set} != xset ; then
SDL_CONFIG=$sdl_prefix/bin/sdl2-config
fi
fi
fi
if test x$sdl_pc = xyes ; then
no_sdl=
SDL_CONFIG=pkg-config sdl2
else
as_save_PATH=$PATH
if test x$prefix != xNONE test $cross_compiling != yes; then
PATH=$prefix/bin:$prefix/usr/bin:$PATH
fi
AC_PATH_PROG(SDL_CONFIG, sdl2-config, no, [$PATH])
PATH=$as_save_PATH
AC_MSG_CHECKING(for SDL - version = $min_sdl_version)
no_sdl=
if test $SDL_CONFIG = no ; then
no_sdl=yes
else
SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags`
SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs`
sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test x$enable_sdltest = xyes ; then
ac_save_CFLAGS=$CFLAGS
ac_save_CXXFLAGS=$CXXFLAGS
ac_save_LIBS=$LIBS
CFLAGS=$CFLAGS $SDL_CFLAGS
CXXFLAGS=$CXXFLAGS $SDL_CFLAGS
LIBS=$LIBS $SDL_LIBS
dnl
dnl Now check if the installed SDL is sufficiently new. (Also sanity
dnl checks the results of sdl2-config to some extent
dnl
rm -f conf.sdltest
AC_TRY_RUN([
#include stdio.h
#include stdlib.h
#include string.h
#include SDL.h
char*
my_strdup (char *str)
{
char *new_str;
if (str)
{
new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
strcpy (new_str, str);
}
else
new_str = NULL;
return new_str;
}
int main (int argc, char *argv[])
{
int major, minor, micro;
char *tmp_version;
/* This hangs on some systems (?)
system (touch conf.sdltest);
*/
{ FILE *fp = fopen(conf.sdltest, a); if ( fp ) fclose(fp); }
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = my_strdup($min_sdl_version);
if
