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[pdf-devel] Re: [PATCH]DCT-filter
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From: |
Yavor Doganov |
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Subject: |
[pdf-devel] Re: [PATCH]DCT-filter |
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Date: |
Tue, 23 Dec 2008 01:15:27 +0200 |
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User-agent: |
Wanderlust/2.15.5 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (Gojō) APEL/10.7 Emacs/22.3 (i486-pc-linux-gnu) MULE/5.0 (SAKAKI) |
ych wrote:
>
> +have_jpeglib=no
> +AC_CHECK_LIB([jpeg],[jpeg_std_error],[have_jpeglib=yes],,)
> +
> +if test "x$have_jpeglib" = "xyes"; then
> + LIBS="-ljpeg $LIBS"
> + AC_DEFINE([HAVE_JPEGLIB], [1], [The jpeglib library is available])
> +fi
> +AM_CONDITIONAL([JPEGLIB], [test "x$have_jpeglib" = "xyes"])
Sorry to interfere, but why not simply:
AC_CHECK_LIB([jpeg], [jpeg_std_error], [], [have_jpeglib=no])
AM_CONDITIONAL([JPEGLIB], [test "$have_jpeglib" != "no"])
...
Using JPEG filter? ${ac_cv_lib_jpeg_jpeg_std_error}
By default this will automatically define the preprocessor symbol
HAVE_LIBJPEG and will add -ljpeg to LIBS. The Automake conditional
could be the same as the symbol, of course.