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configure: made the functions to try lib link+compile more generic

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The function can have a wider use, so moved then to a more neutral place
and gave them more generic names.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
This commit is contained in:
Christophe CURIS
2013-11-17 18:51:11 +01:00
committed by Carlos R. Mafra
parent 6184c955e7
commit fbe202f49b
2 changed files with 61 additions and 60 deletions
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43
m4/windowmaker.m4
View File

@@ -59,3 +59,46 @@ else
fi
CPPFLAGS="$CPPFLAGS_old"
])
dnl _WM_LIB_CHECK_FUNCTS
dnl -----------------------
dnl (internal shell functions)
dnl
dnl Create 2 shell functions:
dnl wm_fn_imgfmt_try_link: try to link against library
dnl wm_fn_imgfmt_try_compile: try to compile against header
dnl
AC_DEFUN_ONCE([_WM_LIB_CHECK_FUNCTS],
[@%:@ wm_fn_lib_try_link FUNCTION LFLAGS
@%:@ ----------------------------------
@%:@ Try linking against library in $LFLAGS using function named $FUNCTION
@%:@ Assumes that LIBS have been saved in 'wm_save_LIBS' by caller
wm_fn_lib_try_link ()
{
LIBS="$wm_save_LIBS $[]2"
AC_TRY_LINK_FUNC([$[]1],
[wm_retval=0],
[wm_retval=1])
AS_SET_STATUS([$wm_retval])
}
@%:@ wm_fn_lib_try_compile HEADER GVARDEF FUNC_CALL CFLAGS
@%:@ -----------------------------------------------------
@%:@ Try to compile using header $HEADER and trying to call a function
@%:@ using the $FUNC_CALL expression and using extra $CFLAGS in the
@%:@ compiler's command line; GVARDEF can be used to include one line
@%:@ in the global context of the source.
@%:@ Assumes that CFLAGS have been saved in 'wm_save_CFLAGS' by caller
wm_fn_lib_try_compile ()
{
CFLAGS="$wm_save_CFLAGS $[]4"
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([@%:@include <$[]1>
$[]2], [ $[]3;])],
[wm_retval=0],
[wm_retval=1])
AS_SET_STATUS([$wm_retval])
}
])

78
m4/wm_imgfmt_check.m4
View File

@@ -29,7 +29,7 @@
# the variable 'supported_gfx'
# When not found, append info to variable 'unsupported'
AC_DEFUN_ONCE([WM_IMGFMT_CHECK_GIF],
[AC_REQUIRE([_WM_IMGFMT_CHECK_FUNCTS])
[AC_REQUIRE([_WM_LIB_CHECK_FUNCTS])
AS_IF([test "x$enable_gif" = "xno"],
[unsupported="$unsupported GIF"],
[AC_CACHE_CHECK([for GIF support library], [wm_cv_imgfmt_gif],
@@ -38,7 +38,7 @@ AS_IF([test "x$enable_gif" = "xno"],
dnl
dnl We check first if one of the known libraries is available
for wm_arg in "-lgif" "-lungif" ; do
AS_IF([wm_fn_imgfmt_try_link "DGifOpenFileName" "$XLFLAGS $XLIBS $wm_arg"],
AS_IF([wm_fn_lib_try_link "DGifOpenFileName" "$XLFLAGS $XLIBS $wm_arg"],
[wm_cv_imgfmt_gif="$wm_arg" ; break])
done
LIBS="$wm_save_LIBS"
@@ -48,10 +48,10 @@ AS_IF([test "x$enable_gif" = "xno"],
[dnl
dnl A library was found, now check for the appropriate header
wm_save_CFLAGS="$CFLAGS"
AS_IF([wm_fn_imgfmt_try_compile "gif_lib.h" "return 0" ""],
AS_IF([wm_fn_lib_try_compile "gif_lib.h" "" "return 0" ""],
[],
[AC_MSG_ERROR([found $wm_cv_imgfmt_gif but could not find appropriate header - are you missing libgif-dev package?])])
AS_IF([wm_fn_imgfmt_try_compile "gif_lib.h" "DGifOpenFileName(filename)" ""],
AS_IF([wm_fn_lib_try_compile "gif_lib.h" 'const char *filename = "dummy";' "DGifOpenFileName(filename)" ""],
[wm_cv_imgfmt_gif="$wm_cv_imgfmt_gif version:4"],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
@@ -92,7 +92,7 @@ const char *filename = "dummy";],
# the variable 'supported_gfx'
# When not found, append info to variable 'unsupported'
AC_DEFUN_ONCE([WM_IMGFMT_CHECK_JPEG],
[AC_REQUIRE([_WM_IMGFMT_CHECK_FUNCTS])
[AC_REQUIRE([_WM_LIB_CHECK_FUNCTS])
AS_IF([test "x$enable_jpeg" = "xno"],
[unsupported="$unsupported JPEG"],
[AC_CACHE_CHECK([for JPEG support library], [wm_cv_imgfmt_jpeg],
@@ -100,7 +100,7 @@ AS_IF([test "x$enable_jpeg" = "xno"],
wm_save_LIBS="$LIBS"
dnl
dnl We check first if one of the known libraries is available
AS_IF([wm_fn_imgfmt_try_link "jpeg_destroy_compress" "$XLFLAGS $XLIBS -ljpeg"],
AS_IF([wm_fn_lib_try_link "jpeg_destroy_compress" "$XLFLAGS $XLIBS -ljpeg"],
[wm_cv_imgfmt_jpeg="-ljpeg"])
LIBS="$wm_save_LIBS"
AS_IF([test "x$enable_jpeg$wm_cv_imgfmt_jpeg" = "xyesno"],
@@ -149,7 +149,7 @@ AM_CONDITIONAL([USE_JPEG], [test "x$enable_jpeg" != "xno"])dnl
# the variable 'supported_gfx'
# When not found, append info to variable 'unsupported'
AC_DEFUN_ONCE([WM_IMGFMT_CHECK_PNG],
[AC_REQUIRE([_WM_IMGFMT_CHECK_FUNCTS])
[AC_REQUIRE([_WM_LIB_CHECK_FUNCTS])
AS_IF([test "x$enable_png" = "xno"],
[unsupported="$unsupported PNG"],
[AC_CACHE_CHECK([for PNG support library], [wm_cv_imgfmt_png],
@@ -158,7 +158,7 @@ AS_IF([test "x$enable_png" = "xno"],
dnl We check first if one of the known libraries is available
wm_save_LIBS="$LIBS"
for wm_arg in "-lpng" "-lpng -lz" "-lpng -lz -lm" ; do
AS_IF([wm_fn_imgfmt_try_link "png_get_valid" "$XLFLAGS $XLIBS $wm_arg"],
AS_IF([wm_fn_lib_try_link "png_get_valid" "$XLFLAGS $XLIBS $wm_arg"],
[wm_cv_imgfmt_png="$wm_arg" ; break])
done
LIBS="$wm_save_LIBS"
@@ -168,10 +168,10 @@ AS_IF([test "x$enable_png" = "xno"],
[dnl
dnl A library was found, now check for the appropriate header
wm_save_CFLAGS="$CFLAGS"
AS_IF([wm_fn_imgfmt_try_compile "png.h" "return 0" ""],
AS_IF([wm_fn_lib_try_compile "png.h" "" "return 0" ""],
[],
[AC_MSG_ERROR([found $wm_cv_imgfmt_png but could not find appropriate header - are you missing libpng-dev package?])])
AS_IF([wm_fn_imgfmt_try_compile "png.h" "png_get_valid(NULL, NULL, PNG_INFO_tRNS)" ""],
AS_IF([wm_fn_lib_try_compile "png.h" "" "png_get_valid(NULL, NULL, PNG_INFO_tRNS)" ""],
[],
[AC_MSG_ERROR([found $wm_cv_imgfmt_png and header, but cannot compile - unsupported version?])])
CFLAGS="$wm_save_CFLAGS"])
@@ -201,7 +201,7 @@ AM_CONDITIONAL([USE_PNG], [test "x$enable_png" != "xno"])dnl
# the variable 'supported_gfx'
# When not found, append info to variable 'unsupported'
AC_DEFUN_ONCE([WM_IMGFMT_CHECK_TIFF],
[AC_REQUIRE([_WM_IMGFMT_CHECK_FUNCTS])
[AC_REQUIRE([_WM_LIB_CHECK_FUNCTS])
AS_IF([test "x$enable_tiff" = "xno"],
[unsupported="$unsupported TIFF"],
[AC_CACHE_CHECK([for TIFF support library], [wm_cv_imgfmt_tiff],
@@ -218,7 +218,7 @@ AS_IF([test "x$enable_tiff" = "xno"],
"-ltiff -ljpeg -ljbig -lz" \
dnl Probably for historical reasons?
"-ltiff34" "-ltiff34 -ljpeg" "-ltiff34 -ljpeg -lm" ; do
AS_IF([wm_fn_imgfmt_try_link "TIFFGetVersion" "$XLFLAGS $XLIBS $wm_arg"],
AS_IF([wm_fn_lib_try_link "TIFFGetVersion" "$XLFLAGS $XLIBS $wm_arg"],
[wm_cv_imgfmt_tiff="$wm_arg" ; break])
done
LIBS="$wm_save_LIBS"
@@ -228,10 +228,10 @@ AS_IF([test "x$enable_tiff" = "xno"],
[dnl
dnl A library was found, now check for the appropriate header
wm_save_CFLAGS="$CFLAGS"
AS_IF([wm_fn_imgfmt_try_compile "tiffio.h" "return 0" ""],
AS_IF([wm_fn_lib_try_compile "tiffio.h" "" "return 0" ""],
[],
[AC_MSG_ERROR([found $wm_cv_imgfmt_tiff but could not find appropriate header - are you missing libtiff-dev package?])])
AS_IF([wm_fn_imgfmt_try_compile "tiffio.h" 'TIFFOpen(filename, "r")' ""],
AS_IF([wm_fn_lib_try_compile "tiffio.h" 'const char *filename = "dummy";' 'TIFFOpen(filename, "r")' ""],
[],
[AC_MSG_ERROR([found $wm_cv_imgfmt_tiff and header, but cannot compile - unsupported version?])])
CFLAGS="$wm_save_CFLAGS"])
@@ -260,7 +260,7 @@ AM_CONDITIONAL([USE_TIFF], [test "x$enable_tiff" != "xno"])dnl
# When found, append appropriate stuff in GFXLIBS, and append info to
# the variable 'supported_gfx'
AC_DEFUN_ONCE([WM_IMGFMT_CHECK_XPM],
[AC_REQUIRE([_WM_IMGFMT_CHECK_FUNCTS])
[AC_REQUIRE([_WM_LIB_CHECK_FUNCTS])
AS_IF([test "x$enable_xpm" = "xno"],
[supported_gfx="$supported_gfx builtin-XPM"],
[AC_CACHE_CHECK([for XPM support library], [wm_cv_imgfmt_xpm],
@@ -268,7 +268,7 @@ AS_IF([test "x$enable_xpm" = "xno"],
dnl
dnl We check first if one of the known libraries is available
wm_save_LIBS="$LIBS"
AS_IF([wm_fn_imgfmt_try_link "XpmCreatePixmapFromData" "$XLFLAGS $XLIBS -lXpm"],
AS_IF([wm_fn_lib_try_link "XpmCreatePixmapFromData" "$XLFLAGS $XLIBS -lXpm"],
[wm_cv_imgfmt_xpm="-lXpm" ; break])
LIBS="$wm_save_LIBS"
AS_IF([test "x$enable_xpm$wm_cv_imgfmt_xpm" = "xyesno"],
@@ -277,10 +277,10 @@ AS_IF([test "x$enable_xpm" = "xno"],
[dnl
dnl A library was found, now check for the appropriate header
wm_save_CFLAGS="$CFLAGS"
AS_IF([wm_fn_imgfmt_try_compile "X11/xpm.h" "return 0" "$XCFLAGS"],
AS_IF([wm_fn_lib_try_compile "X11/xpm.h" "" "return 0" "$XCFLAGS"],
[],
[AC_MSG_ERROR([found $wm_cv_imgfmt_xpm but could not find appropriate header - are you missing libXpm-dev package?])])
AS_IF([wm_fn_imgfmt_try_compile "X11/xpm.h" 'XpmReadFileToXpmImage((char *)filename, NULL, NULL)' "$XCFLAGS"],
AS_IF([wm_fn_lib_try_compile "X11/xpm.h" 'char *filename = "dummy";' 'XpmReadFileToXpmImage(filename, NULL, NULL)' "$XCFLAGS"],
[],
[AC_MSG_ERROR([found $wm_cv_imgfmt_xpm and header, but cannot compile - unsupported version?])])
CFLAGS="$wm_save_CFLAGS"])
@@ -295,45 +295,3 @@ AS_IF([test "x$enable_xpm" = "xno"],
])
AM_CONDITIONAL([USE_XPM], [test "x$enable_xpm" != "xno"])dnl
]) dnl AC_DEFUN
# _WM_IMGFMT_CHECK_FUNCTS
# -----------------------
# (internal shell functions)
#
# Create 2 shell functions:
# wm_fn_imgfmt_try_link: try to link against library
# wm_fn_imgfmt_try_compile: try to compile against header
#
AC_DEFUN_ONCE([_WM_IMGFMT_CHECK_FUNCTS],
[@%:@ wm_fn_imgfmt_try_link FUNCTION LFLAGS
@%:@ -------------------------------------
@%:@ Try linking aginst library in $LFLAGS using function named $FUNCTION
@%:@ Assumes that LIBS have been saved in 'wm_save_LIBS' by caller
wm_fn_imgfmt_try_link ()
{
LIBS="$wm_save_LIBS $[]2"
AC_TRY_LINK_FUNC([$[]1],
[wm_retval=0],
[wm_retval=1])
AS_SET_STATUS([$wm_retval])
}
@%:@ wm_fn_imgfmt_try_compile HEADER FUNC_CALL CFLAGS
@%:@ -----------------------------------------
@%:@ Try to compile using header $HEADER and trying to call a function
@%:@ using the $FUNC_CALL expression and using extra $CFLAGS in the
@%:@ compiler's command line
@%:@ Assumes that CFLAGS have been saved in 'wm_save_CFLAGS' by caller
wm_fn_imgfmt_try_compile ()
{
CFLAGS="$wm_save_CFLAGS $[]3"
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([@%:@include <$[]1>
const char *filename = "dummy";], [ $[]2;])],
[wm_retval=0],
[wm_retval=1])
AS_SET_STATUS([$wm_retval])
}
])