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Dag-Erling Smørgrav
d8463c2549
* Create `src/config.h` instead of passing everything on the compiler command line. * To reduce the magnitude of this change, add `--include src/config.h` to CFLAGS instead of adding `#include "src/config.h"` at the top of each source file. Not all compilers support this, but I don't think we care about anything other than gcc and clang at this point. * Rather than generate `src/config_opts.inc`, emit `JQ_CONFIG` directly into `src/config.h`. * Rather than generate `src/version.h`, define `JQ_VERSION` as an alias for the standard `PACKAGE_VERSION`.
63 lines
1.5 KiB
Plaintext
63 lines
1.5 KiB
Plaintext
dnl Shamelessly stolen from Heimdal
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dnl
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dnl Look for function in any of the specified libraries
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dnl
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dnl AC_FIND_FUNC_NO_LIBS2(func, libraries, includes, arguments, extra libs, extra args)
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AC_DEFUN([AC_FIND_FUNC_NO_LIBS2], [
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AC_MSG_CHECKING([for $1])
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AC_CACHE_VAL(ac_cv_funclib_$1,
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[
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if eval "test \"\$ac_cv_func_$1\" != yes" ; then
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ac_save_LIBS="$LIBS"
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for ac_lib in $2; do
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case "$ac_lib" in
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"") ;;
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yes) ac_lib="" ;;
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no) continue ;;
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-l*) ;;
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*) ac_lib="-l$ac_lib" ;;
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esac
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LIBS="$6 $ac_lib $5 $ac_save_LIBS"
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[$3]],[[$1($4)]])],[eval "if test -n \"$ac_lib\";then ac_cv_funclib_$1=$ac_lib; else ac_cv_funclib_$1=yes; fi";break])
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done
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eval "ac_cv_funclib_$1=\${ac_cv_funclib_$1-no}"
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LIBS="$ac_save_LIBS"
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fi
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])
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eval "ac_res=\$ac_cv_funclib_$1"
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if false; then
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AC_CHECK_FUNCS($1)
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dnl AC_CHECK_LIBS($2, foo)
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fi
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# $1
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eval "ac_tr_func=HAVE_[]upcase($1)"
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eval "ac_tr_lib=HAVE_LIB[]upcase($ac_res | sed -e 's/-l//')"
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eval "LIB_$1=$ac_res"
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case "$ac_res" in
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yes)
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eval "ac_cv_func_$1=yes"
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eval "LIB_$1="
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AC_DEFINE_UNQUOTED($ac_tr_func, 1, [Define if the $1 function is available.])
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AC_MSG_RESULT([yes])
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;;
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no)
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eval "ac_cv_func_$1=no"
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eval "LIB_$1="
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AC_MSG_RESULT([no])
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;;
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*)
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eval "ac_cv_func_$1=yes"
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eval "ac_cv_lib_`echo "$ac_res" | sed 's/-l//'`=yes"
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AC_DEFINE_UNQUOTED($ac_tr_func, 1, [Define if you have the $1 function.])
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AC_DEFINE_UNQUOTED($ac_tr_lib, 1, [Define if you have the $2 library.])
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AC_MSG_RESULT([yes, in $ac_res])
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;;
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esac
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AC_SUBST(LIB_$1)
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])
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