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($have_opengl) dnl Check for OpenGL ES AC_MSG_CHECKING(for OpenGL ES support) have_opengles=no AC_TRY_COMPILE([ #if defined (__IPHONEOS__) #include #else #include #endif /* __QNXNTO__ */ ],[ ],[ have_opengles=yes ]) AC_MSG_RESULT($have_opengles) dnl Check for OpenGL ES2 AC_MSG_CHECKING(for OpenGL ES2 support) have_opengles2=no AC_TRY_COMPILE([ #if defined (__IPHONEOS__) #include #include #else #include #include #endif ],[ ],[ have_opengles2=yes ]) AC_MSG_RESULT($have_opengles2) GLLIB="" GLESLIB="" GLES2LIB="" if test x$have_opengles = xyes; then CFLAGS="$CFLAGS -DHAVE_OPENGLES" GLESLIB="$XPATH -lGLESv1_CM" fi if test x$have_opengles2 = xyes; then CFLAGS="$CFLAGS -DHAVE_OPENGLES2" #GLES2LIB="$XPATH -lGLESv2" fi if test x$have_opengl = xyes; then CFLAGS="$CFLAGS -DHAVE_OPENGL" GLLIB="$XPATH $SYS_GL_LIBS" fi AC_SUBST(GLLIB) AC_SUBST(GLESLIB) AC_SUBST(GLES2LIB) AC_SUBST(XLIB) dnl Check for Vulkan Header have_vulkan_hdr=no vsdk_include_dir="${VULKAN_SDK}/include" vulkan_header="vulkan/vulkan.h" save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="${save_CPPFLAGS} -I$vsdk_include_dir" AC_CHECK_HEADER($vulkan_header, have_vulkan_hdr=yes, have_vulkan_hdr=no) CPPFLAGS="$save_CPPFLAGS" if test x$have_vulkan_hdr = xyes; then # vulkan.h has been found in either $VULKAN_SDK/include or along the # the standard include path. Unfortunately there seems no easy # way to find out which, so... if test -n "$VULKAN_SDK" -a -f "$vsdk_include_dir/$vulkan_header"; then CFLAGS="$CFLAGS -I$vsdk_include_dir" fi fi 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])