diff options
| -rw-r--r-- | configure.ac | 109 |
1 files changed, 58 insertions, 51 deletions
diff --git a/configure.ac b/configure.ac index 1a8d13c38..864abf534 100644 --- a/configure.ac +++ b/configure.ac @@ -941,71 +941,78 @@ dnl Check for & handle argument to --with-zlib. _cppflags=$CPPFLAGS _ldflags=$LDFLAGS -OPT_ZLIB="/usr/local" AC_ARG_WITH(zlib, AC_HELP_STRING([--with-zlib=PATH],[search for zlib in PATH]) AC_HELP_STRING([--without-zlib],[disable use of zlib]), [OPT_ZLIB="$withval"]) -case "$OPT_ZLIB" in - no) - AC_MSG_WARN([zlib disabled]) ;; - *) +if test "$OPT_ZLIB" = "no" ; then + AC_MSG_WARN([zlib disabled]) +else + if test "$OPT_ZLIB" = "yes" ; then + OPT_ZLIB="" + fi + + if test -z "$OPT_ZLIB" ; then dnl check for the lib first without setting any new path, since many dnl people have it in the default path AC_CHECK_LIB(z, inflateEnd, dnl libz found, set the variable [HAVE_LIBZ="1"], - dnl if no lib found, try to add the given library - [if test -d "$OPT_ZLIB"; then - CPPFLAGS="$CPPFLAGS -I$OPT_ZLIB/include" - LDFLAGS="$LDFLAGS -L$OPT_ZLIB/lib$libsuff" - fi]) + dnl if no lib found, try /usr/local + [OPT_ZLIB="/usr/local"]) - AC_CHECK_HEADER(zlib.h, - [ - dnl zlib.h was found - HAVE_ZLIB_H="1" - dnl if the lib wasn't found already, try again with the new paths - if test "$HAVE_LIBZ" != "1"; then - AC_CHECK_LIB(z, gzread, - [ - dnl the lib was found! - HAVE_LIBZ="1" - ], - [ CPPFLAGS=$_cppflags - LDFLAGS=$_ldflags]) - fi - ], - [ - dnl zlib.h was not found, restore the flags - CPPFLAGS=$_cppflags - LDFLAGS=$_ldflags] - ) + fi - if test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" != "1" - then - AC_MSG_WARN([configure found only the libz lib, not the header file!]) - elif test "$HAVE_LIBZ" != "1" && test "$HAVE_ZLIB_H" = "1" - then - AC_MSG_WARN([configure found only the libz header file, not the lib!]) - elif test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" = "1" - then - dnl both header and lib were found! - AC_SUBST(HAVE_LIBZ) - AC_DEFINE(HAVE_ZLIB_H, 1, [if you have the zlib.h header file]) - AC_DEFINE(HAVE_LIBZ, 1, [if zlib is available]) - - LIBS="$LIBS -lz" - - dnl replace 'HAVE_LIBZ' in the automake makefile.ams - AMFIXLIB="1" - AC_MSG_NOTICE([found both libz and libz.h header]) - curl_zlib_msg="enabled" + dnl Add a nonempty path to the compiler flags + if test -n "$OPT_ZLIB"; then + CPPFLAGS="$CPPFLAGS -I$OPT_ZLIB/include" + LDFLAGS="$LDFLAGS -L$OPT_ZLIB/lib$libsuff" + fi + + AC_CHECK_HEADER(zlib.h, + [ + dnl zlib.h was found + HAVE_ZLIB_H="1" + dnl if the lib wasn't found already, try again with the new paths + if test "$HAVE_LIBZ" != "1"; then + AC_CHECK_LIB(z, gzread, + [ + dnl the lib was found! + HAVE_LIBZ="1" + ], + [ CPPFLAGS=$_cppflags + LDFLAGS=$_ldflags]) fi - ;; -esac + ], + [ + dnl zlib.h was not found, restore the flags + CPPFLAGS=$_cppflags + LDFLAGS=$_ldflags] + ) + + if test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" != "1" + then + AC_MSG_WARN([configure found only the libz lib, not the header file!]) + elif test "$HAVE_LIBZ" != "1" && test "$HAVE_ZLIB_H" = "1" + then + AC_MSG_WARN([configure found only the libz header file, not the lib!]) + elif test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" = "1" + then + dnl both header and lib were found! + AC_SUBST(HAVE_LIBZ) + AC_DEFINE(HAVE_ZLIB_H, 1, [if you have the zlib.h header file]) + AC_DEFINE(HAVE_LIBZ, 1, [if zlib is available]) + + LIBS="$LIBS -lz" + + dnl replace 'HAVE_LIBZ' in the automake makefile.ams + AMFIXLIB="1" + AC_MSG_NOTICE([found both libz and libz.h header]) + curl_zlib_msg="enabled" + fi +fi dnl set variable for use in automakefile(s) AM_CONDITIONAL(HAVE_LIBZ, test x"$AMFIXLIB" = x1) |