48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
dnl find_lib_and_headers(name, verify-header, library-name, requirded?)
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dnl Export
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dnl name_inc in -I"include-path" form
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dnl name_lib in -l"library-name" form
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dnl name_ld in -L"library-path" form
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dnl name_found set to "yes" if found
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AC_DEFUN([find_lib_and_headers],
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[
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AC_LANG_PUSH(C++)
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OLD_CXXFLAGS=$CXXFLAGS;
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OLD_LDFLAGS=$LDFLAGS;
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OLD_LIBS=$LIBS;
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LIBS="$LIBS -l$3";
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# Get include path and lib path
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AC_ARG_WITH([$1],
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[AS_HELP_STRING([--with-$1], [prefix of $1 ])],
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[given_inc_path="$withval/include"; CXXFLAGS="-I$given_inc_path $CXXFLAGS";
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given_lib_path="$withval/lib"; LDFLAGS="-L$given_lib_path $LDFLAGS"],
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[given_inc_path=inc_not_give_$1;
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given_lib_path=lib_not_give_$1]
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)
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# Check for library and headers works
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AC_MSG_CHECKING([for $1: $2 in $given_inc_path, and lib$3 in $given_lib_path])
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# try to compile a file that includes a header of the library
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <$2>]], [[;]])],
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[AC_MSG_RESULT([ok])
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AC_SUBST([$1_found],["yes"])
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AS_IF([test "x$given_inc_path" != "xinc_not_give_$1"],
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[AC_SUBST([$1_inc],["-I$given_inc_path"])])
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AC_SUBST([$1_lib],["-l$3"])
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AS_IF([test "x$given_lib_path" != "xlib_not_give_$1"],
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[AC_SUBST([$1_ld],["-L$given_lib_path"])])],
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[AS_IF([test "x$4" = "xrequired"],
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[AC_MSG_ERROR([$1 required but not found])],
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[AC_MSG_RESULT([not found])])]
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)
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# reset original CXXFLAGS
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CXXFLAGS=$OLD_CXXFLAGS
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LDFLAGS=$OLD_LDFLAGS;
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LIBS=$OLD_LIBS
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AC_LANG_POP(C++)
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])
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