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dnl Autoconfigure input file for gif2png
dnl Eric S. Raymond <esr@thyrsus.com>
dnl
dnl Process this file with autoconf to produce a configure script.
dnl
AC_INIT(gif2png.h) dnl A distinctive file to look for in srcdir.
AM_INIT_AUTOMAKE(gif2png, 2.5.2)
AM_CONFIG_HEADER(config.h)
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_CPP dnl Later checks need this.
AC_PROG_CC_C_O
AC_HEADER_STDC
AC_ARG_WITH(png,[ --with-png=DIR location of png lib/inc],
[LDFLAGS="-L${withval} ${LDFLAGS}"
CFLAGS="-I${withval} ${CFLAGS}"])
AC_ARG_WITH(png-lib,[ --with-png-lib=DIR location of png library],
[LDFLAGS="-L${withval} ${LDFLAGS}"])
AC_ARG_WITH(png-inc,[ --with-png-inc=DIR location of the libpng include files],
[CFLAGS="-I${withval} ${CFLAGS}"])
AC_CHECK_LIB(z, deflate)
AC_CHECK_LIB(m, pow)
AC_CHECK_LIB(png, png_get_io_ptr, , , $LIBS)
if test "$ac_cv_lib_png_png_get_io_ptr" = "no"
then
AC_ERROR([PNG library is missing! Please get it.])
fi
if test "$ac_cv_lib_z_deflate" = "no"
then
AC_ERROR([ZLIB library is missing! Please get it.])
fi
AC_OUTPUT(Makefile gif2png.spec)
dnl Local Variables:
dnl comment-start: "dnl "
dnl comment-end: ""
dnl comment-start-skip: "\\bdnl\\b\\s *"
dnl compile-command: "make configure config.h.in"
dnl End:
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