69 lines
1.8 KiB
Plaintext
69 lines
1.8 KiB
Plaintext
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#
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# SYNOPSIS
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#
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# AX_GUESS_PATH_LIB([foo])
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#
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# DESCRIPTION
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#
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# Search for library foo in -Lpath's found in LDFLAGS and set LIBFOO_PATH to
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# the full directory path where libfoo.so was found.
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# If no library is found in paths given in LDFLAGS, then lastly it looks in /usr/local/lib.
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#
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# LAST MODIFICATION
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#
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# 2011-04-11
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#
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# COPYLEFT
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#
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# Copyright (c) 2011 Carlo Wood <carlo@alinoe.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved.
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AC_DEFUN([AX_GUESS_PATH_LIB],
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[
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function cw_search_library_path
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{
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n=2
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while test $n -le [$]#; do
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eval arg=\$"$n"
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case "$arg" in
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-L*)
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path="`echo "$arg" | sed -e 's/-L//'`"
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if test -e "$path/lib$1.so"; then
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echo "$path"
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return
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fi
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;;
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esac
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n=$((n+1))
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done
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if test -e "/usr/local/lib/lib$1.so"; then
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echo "/usr/local/lib"
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fi
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}
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have_realpath=`which realpath`
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cw_libname_uppercase="m4_toupper([$1])"
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AC_CACHE_CHECK([if we can find lib[$1].so], [cw_cv_lib"$[]cw_libname_uppercase"_path],
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[
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cw_library_path=`eval cw_search_library_path [$1] $LDFLAGS`
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if test -n "$cw_library_path"; then
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if test "x$have_realpath" != "x"; then
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eval cw_cv_lib"$cw_libname_uppercase"_path=`realpath -s "$cw_library_path"`
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else
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eval cw_cv_lib"$cw_libname_uppercase"_path="$cw_library_path"
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fi
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else
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eval cw_cv_lib"$cw_libname_uppercase"_path="no"
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fi
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])
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if eval test \"\$cw_cv_lib"$cw_libname_uppercase"_path\" = "no"; then
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eval LIB"$cw_libname_uppercase"_PATH=""
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else
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eval LIB"$cw_libname_uppercase"_PATH=\"\$cw_cv_lib"$cw_libname_uppercase"_path\"
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fi
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])
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