* libltdl/m4/libtool.m4 (_LT_SYS_DYNAMIC_LINKER) [cygwin*]: Add w32api to sys_lib_search_path_spec without overriding gcc's own search path.
Original patch by Yaakov Selkowitz. As he explained: With gcc4 providing shared libs, it should now perfectly legitimate to add any of these libs to the libtool link command. Right now, though, libtool can't find these libraries because $sys_lib_search_path_spec is hard-coded to ignore it, and libtool will refuse to link against any library it can't find (even though the linker itself can). Instead, this patch simply adds /usr/lib/w32api to the default gcc-specific search path. The m4_if() makes sure that w32api is added only once, as is done with Darwin a few lines later. Tested in combination with several other cygwin patches, as part of the recent cygwin "official" 2.2.7a-N libtool release(s): http://cygwin.com/ml/cygwin-announce/2009-03/msg00080.html http://cygwin.com/ml/cygwin-announce/2009-03/msg00081.html No regressions. Okay to push? --- libltdl/m4/libtool.m4 | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/libltdl/m4/libtool.m4 b/libltdl/m4/libtool.m4 index 15612c0..63e831e 100644 --- a/libltdl/m4/libtool.m4 +++ b/libltdl/m4/libtool.m4 @@ -2156,7 +2156,8 @@ cygwin* | mingw* | pw32* | cegcc*) cygwin*) # Cygwin DLLs use 'cyg' prefix rather than 'lib' soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' - sys_lib_search_path_spec="/usr/lib /lib/w32api /lib /usr/local/lib" +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"]) ;; mingw* | cegcc*) # MinGW DLLs use traditional 'lib' prefix -- 1.6.1.2
