ref: 46c59b93896f02b6afb0d5d18335d97c56cfdb5e
dir: /external/SDL2/test/configure.ac/
dnl Process this file with autoconf to produce a configure script.
AC_INIT(README)
dnl Detect the canonical build and host environments
AC_CONFIG_AUX_DIRS($srcdir/../build-scripts)
AC_CANONICAL_HOST
dnl Check for tools
AC_PROG_CC
dnl Check for compiler environment
AC_C_CONST
dnl We only care about this for building testnative at the moment, so these
dnl values shouldn't be considered absolute truth.
dnl (Haiku, for example, sets none of these.)
ISUNIX="false"
ISWINDOWS="false"
ISMACOSX="false"
dnl Figure out which math library to use
case "$host" in
*-*-cygwin* | *-*-mingw32*)
ISWINDOWS="true"
EXE=".exe"
MATHLIB=""
SYS_GL_LIBS="-lopengl32"
;;
*-*-haiku*)
EXE=""
MATHLIB=""
SYS_GL_LIBS="-lGL"
;;
*-*-darwin* )
ISMACOSX="true"
EXE=""
MATHLIB=""
SYS_GL_LIBS="-Wl,-framework,OpenGL"
;;
*-*-aix*)
ISUNIX="true"
EXE=""
if test x$ac_cv_prog_gcc = xyes; then
CFLAGS="-mthreads"
fi
SYS_GL_LIBS=""
;;
*-*-mint*)
EXE=""
MATHLIB=""
AC_PATH_PROG(OSMESA_CONFIG, osmesa-config, no)
if test "x$OSMESA_CONFIG" = "xyes"; then
OSMESA_CFLAGS=`$OSMESA_CONFIG --cflags`
OSMESA_LIBS=`$OSMESA_CONFIG --libs`
CFLAGS="$CFLAGS $OSMESA_CFLAGS"
SYS_GL_LIBS="$OSMESA_LIBS"
else
SYS_GL_LIBS="-lOSMesa"
fi
;;
*-*-qnx*)
EXE=""
MATHLIB=""
SYS_GL_LIBS="-lGLES_CM"
;;
*-*-emscripten* )
dnl This should really be .js, but we need to specify extra flags when compiling to js
EXE=".bc"
MATHLIB=""
SYS_GL_LIBS=""
;;
*)
dnl Oh well, call it Unix...
ISUNIX="true"
EXE=""
MATHLIB="-lm"
SYS_GL_LIBS="-lGL"
;;
esac
AC_SUBST(EXE)
AC_SUBST(MATHLIB)
AC_SUBST(ISMACOSX)
AC_SUBST(ISWINDOWS)
AC_SUBST(ISUNIX)
dnl Check for SDL
SDL_VERSION=2.0.0
AM_PATH_SDL2($SDL_VERSION,
:,
AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])
)
CFLAGS="$CFLAGS $SDL_CFLAGS"
LIBS="$LIBS -lSDL2_test $SDL_LIBS"
dnl Check for X11 path, needed for OpenGL on some systems
AC_PATH_X
if test x$have_x = xyes; then
if test x$ac_x_includes = xno || test "x$ac_x_includes" = xNone || test "x$ac_x_includes" = x; then
:
else
CFLAGS="$CFLAGS -I$ac_x_includes"
fi
if test x$ac_x_libraries = xno || test "x$ac_x_libraries" = xNone; then
:
else
if test "x$ac_x_libraries" = x; then
XPATH=""
XLIB="-lX11"
else
XPATH="-L$ac_x_libraries"
XLIB="-L$ac_x_libraries -lX11"
fi
fi
fi
dnl Check for OpenGL
AC_MSG_CHECKING(for OpenGL support)
have_opengl=no
AC_TRY_COMPILE([
#include "SDL_opengl.h"
],[
],[
have_opengl=yes
])
AC_MSG_RESULT($have_opengl)
dnl Check for OpenGL ES
AC_MSG_CHECKING(for OpenGL ES support)
have_opengles=no
AC_TRY_COMPILE([
#if defined (__IPHONEOS__)
#include <OpenGLES/ES1/gl.h>
#else
#include <GLES/gl.h>
#endif /* __QNXNTO__ */
],[
],[
have_opengles=yes
])
AC_MSG_RESULT($have_opengles)
dnl Check for OpenGL ES2
AC_MSG_CHECKING(for OpenGL ES2 support)
have_opengles2=no
AC_TRY_COMPILE([
#if defined (__IPHONEOS__)
#include <OpenGLES/ES2/gl.h>
#include <OpenGLES/ES2/glext.h>
#else
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#endif
],[
],[
have_opengles2=yes
])
AC_MSG_RESULT($have_opengles2)
GLLIB=""
GLESLIB=""
GLES2LIB=""
OPENGLES1_TARGETS="UNUSED"
OPENGLES2_TARGETS="UNUSED"
OPENGL_TARGETS="UNUSED"
if test x$have_opengles = xyes; then
CFLAGS="$CFLAGS -DHAVE_OPENGLES"
GLESLIB="$XPATH -lGLESv1_CM"
OPENGLES1_TARGETS="TARGETS"
fi
if test x$have_opengles2 = xyes; then
CFLAGS="$CFLAGS -DHAVE_OPENGLES2"
#GLES2LIB="$XPATH -lGLESv2"
OPENGLES2_TARGETS="TARGETS"
fi
if test x$have_opengl = xyes; then
CFLAGS="$CFLAGS -DHAVE_OPENGL"
GLLIB="$XPATH $SYS_GL_LIBS"
OPENGL_TARGETS="TARGETS"
fi
AC_SUBST(OPENGLES1_TARGETS)
AC_SUBST(OPENGLES2_TARGETS)
AC_SUBST(OPENGL_TARGETS)
AC_SUBST(GLLIB)
AC_SUBST(GLESLIB)
AC_SUBST(GLES2LIB)
AC_SUBST(XLIB)
dnl Check for SDL_ttf
AC_CHECK_LIB(SDL2_ttf, TTF_Init, have_SDL_ttf=yes)
if test x$have_SDL_ttf = xyes; then
CFLAGS="$CFLAGS -DHAVE_SDL_TTF"
SDL_TTF_LIB="-lSDL2_ttf"
fi
AC_SUBST(SDL_TTF_LIB)
dnl Finally create all the generated files
AC_OUTPUT([Makefile])