Freeciv

m4/emscripten.m4 \

FC_EMSCRIPTEN

[if test "x$emscripten" != "xyes" ; then

databases=sqlite3

else

databases=no

fi])

if test "x$emscripten" = "xyes" && test "x$databases" != "xno" ; then

AC_MSG_ERROR([fcdb not supported with emscripten])

fi

[if test "x$emscripten" = "xyes" ; then

fc_mp=no

else

fc_mp=auto

fi])

if test "x$fc_mp" != "xno" && test "x$emscripten" = "xyes" ; then

AC_MSG_ERROR([fcmp not supported with emscripten])

fi

if test "x$emscripten" != "xyes" ; then

PKG_CHECK_MODULES([CURL_MIME_API], [libcurl > 7.56.0],

[UTILITY_CFLAGS="${UTILITY_CFLAGS} ${CURL_MIME_API_CFLAGS}"

UTILITY_LIBS="${UTILITY_LIBS} ${CURL_MIME_API_LIBS}"

AC_DEFINE([HAVE_CURL_MIME_API], [1], [libcurl has the mime api])],

[PKG_CHECK_MODULES([CURL], [libcurl >= 7.15.4],

[UTILITY_CFLAGS="${UTILITY_CFLAGS} ${CURL_CFLAGS}"

UTILITY_LIBS="${UTILITY_LIBS} ${CURL_LIBS}"],

[AC_MSG_ERROR([libcurl development files required])])])

fi

if test "x$emscripten" != "xyes" ; then

PKG_CHECK_MODULES([ICU], [icu-uc],,

[AC_MSG_ERROR([icu development files not found. Adjusting PKG_CONFIG_PATH may help])])

UTILITY_CFLAGS="${UTILITY_CFLAGS} ${ICU_CFLAGS}"

UTILITY_LIBS="${UTILITY_LIBS} ${ICU_LIBS}"

else

CFLAGS="$CFLAGS -s USE_ICU=1"

CXXFLAGS="$CXXFLAGS -s USE_ICU=1"

fi

if test "x$emscripten" = "xyes" ; then

AC_DEFINE([ALWAYS_ROOT], [1], [Can execute program as root - emscripten])

fi

if test "x$emscripten" != "xyes" ; then

dnl Check for zlib

AC_CHECK_LIB([z], [gzgets],

[AC_DEFINE([FREECIV_HAVE_LIBZ], [1], [zlib is available])

UTILITY_LIBS="${UTILITY_LIBS} -lz"

COMMON_LIBS="$COMMON_LIBS -lz"],

AC_MSG_ERROR([Could not find zlib library.]))

AC_CHECK_HEADER([zlib.h], [],

AC_MSG_ERROR([zlib found but not zlib.h.

else

CFLAGS="$CFLAGS -s USE_ZLIB=1"

CXXFLAGS="$CXXFLAGS -s USE_ZLIB=1"

fi

elif test "x$emscripten" = "xyes" ; then

thread_impl_c=pthreads

thread_impl_cpp=pthreads

CFLAGS="$CFLAGS -s USE_PTHREADS=1"

CXXFLAGS="$CXXFLAGS -s USE_PTHREADS=1"

elif test "x$emscripten" = "xyes" ; then

AC_MSG_ERROR([Must use external build system tolua command in emscripten build])

if test "x$cross_compiling" = "xyes" || test "x$emscripten" = "xyes" ; then

#ifndef __EMSCRIPTEN__

#endif /* __EMSCRIPTEN__ */

# Configure checks for emscripten client

AC_DEFUN([FC_EMSCRIPTEN],

[

AC_MSG_CHECKING([for emscripten])

AC_COMPILE_IFELSE(

[AC_LANG_SOURCE(

[[#ifndef __EMSCRIPTEN__

error fail

#endif

]])],

[AC_MSG_RESULT([yes])

emscripten=yes],

[AC_MSG_RESULT([no])

emscripten=no])

])

if test "x$emscripten" = "xyes" ; then

gui_sdl2_cflags="-s USE_SDL=2 -s USE_SDL_IMAGE=2 -s USE_SDL_TTF=2 -s USE_SDL_GFX=2"

gui_sdl2_ldflags="-s USE_SDL=2 -s USE_SDL_IMAGE=2 -s USE_SDL_TTF=2 -s USE_SDL_GFX=2"

gui_sdl2=yes

client=yes

else

AM_PATH_SDL2([2.0.0], [sdl2_found="yes"], [sdl2_found="no"])

if test "$sdl2_found" = yes; then

gui_sdl2_cflags="$SDL2_CFLAGS"

gui_sdl2_libs="$SDL2_LIBS"

FC_SDL2_PROJECT([SDL2_image], [IMG_Load], [SDL_image.h])

if test "x$sdl2_h_found" = "xyes" ; then

FC_SDL2_PROJECT([SDL2_ttf], [TTF_OpenFont], [SDL_ttf.h])

else

missing_2_project="SDL2_image"

if test "x$sdl2_h_found" = "xyes" ; then

FC_SDL2_PROJECT([SDL2_gfx], [rotozoomSurface], [SDL2_rotozoom.h])

elif test "x$missing_2_project" = "x" ; then

missing_2_project="SDL2_ttf"

if test "x$sdl2_h_found" = "xyes" ; then

dnl Version number here is as specified by libtool, not the main

dnl freetype version number.

dnl See https://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/docs/VERSIONS.TXT

PKG_CHECK_MODULES([FT2], [freetype2 >= 7.0.1], [freetype_found="yes"], [freetype_found="no"])

if test "$freetype_found" = yes; then

gui_sdl2_cflags="$gui_sdl2_cflags $FT2_CFLAGS"

gui_sdl2_libs="$gui_sdl2_libs $FT2_LIBS"

found_sdl2_client=yes

elif test "x$gui_sdl2" = "xyes"; then

AC_MSG_ERROR([specified client 'sdl2' not configurable (FreeType2 >= 2.1.3 is needed (www.freetype.org))])

fi

elif test "x$gui_sdl2" = "xyes"; then

if test "x$missing_2_project" = "x" ; then

missing_2_project="SDL2_gfx"

fi

if test "x$sdl2_lib_found" = "xyes" ; then

missing_type="-devel"

else

missing_type=""

fi

AC_MSG_ERROR([specified client 'sdl2' not configurable (${missing_2_project}${missing_type} is needed (www.libsdl.org))])

if test "$found_sdl2_client" = yes; then

gui_sdl2=yes

if test "x$client" = "xauto" ; then

client=yes

fi

dnl Check for libiconv (which is usually included in glibc, but may

dnl be distributed separately).

AM_ICONV

FC_LIBCHARSET

AM_LANGINFO_CODESET

gui_sdl2_libs="$LIBICONV $gui_sdl2_libs"

dnl Check for some other libraries - needed under BeOS for instance.

dnl These should perhaps be checked for in all cases?

AC_CHECK_LIB(socket, connect, gui_sdl2_libs="-lsocket $gui_sdl2_libs")

AC_CHECK_LIB(bind, gethostbyaddr, gui_sdl2_libs="-lbind $gui_sdl2_libs")

dnl Control -mwindows flag ourselves instead of letting pkg-config to force

dnl it on us.

gui_sdl2_libs="$(echo $gui_sdl2_libs | $SED 's/-mwindows//g') $MWINDOWS_FLAG"

elif test "x$gui_sdl2" = "xyes"; then

AC_MSG_ERROR([specified client 'sdl2' not configurable (SDL2 >= 2.0.0 is needed (www.libsdl.org))])

fi

if test "x$emscripten" = "xyes" ; then

SOUND_CFLAGS="$SOUND_CFLAGS -s USE_SDL_MIXER=2"

SOUND_LIBS="$SOUND_LIBS -s USE_SDL_MIXER=2"

else

SDL2_VERSION=2.0.6

AM_PATH_SDL2([$SDL2_VERSION], [SDL2=yes], [SDL2=no])

if test "x$SDL2" != "xno" ; then

PKG_CHECK_MODULES([SDL2MIXER], [SDL2_mixer],

[

SOUND_CFLAGS="$SOUND_CFLAGS $SDL2MIXER_CFLAGS"

SOUND_LIBS="$SOUND_LIBS $SDL2MIXER_LIBS"

AC_DEFINE([AUDIO_SDL], [1], [SDL Mixer support])

SDL_mixer=sdl2

SOUND_SDL_OK=true

if test x$sdl_headers_without_path != xyes ; then

AC_CHECK_HEADER([SDL2/SDL_mixer.h], [], [

ac_save_CPPFLAGS="$CPPFLAGS"

ac_save_CFLAGS="$CFLAGS"

ac_save_LIBS="$LIBS"

CPPFLAGS="$CPPFLAGS $SDL2_CFLAGS"

CFLAGS="$CFLAGS $SDL2_CFLAGS"

LIBS="$LIBS $SDL2_LIBS"

AC_CHECK_HEADER([SDL_mixer.h], [SDL_mixer_h=1], [SDL_mixer_h=0])

AC_CHECK_LIB([SDL2_mixer], [Mix_OpenAudio], [SDL_mixer=sdl2])

CPPFLAGS="$ac_save_CPPFLAGS"

CFLAGS="$ac_save_CFLAGS"

LIBS="$ac_save_LIBS"

AC_MSG_CHECKING([building SDL2_mixer support])

if test "x$SDL_mixer_h" = "x1"; then

if test "x$SDL_mixer" = "xsdl2"; then

SOUND_CFLAGS="$SOUND_CFLAGS $SDL2_CFLAGS"

SOUND_LIBS="$SOUND_LIBS -lSDL2_mixer $SDL2_LIBS"

AC_DEFINE([AUDIO_SDL], [1], [SDL Mixer support])

AC_MSG_RESULT([yes])

SOUND_SDL_OK=true

else

AC_MSG_RESULT([no SDL2_mixer library found, install from https://github.com/libsdl-org/SDL_mixer ])

fi

AC_MSG_RESULT([no SDL2_mixer headers found, install from https://github.com/libsdl-org/SDL_mixer])

fi ])

fi