Problem reported by a downstream Cygwin user inadvertently misconfiguring a package cross-build with mingw toolchain:
libtool with mingw hangs building openocd in func_convert_core_msys_to_w32: https://cygwin.com/pipermail/cygwin/2021-June/248791.html The issue exists in libtool build-aux/ltmain.in line 963 in func_convert_core_msys_to_w32 Windows subshell command: ( cmd //c echo "$1" ) see: https://git.savannah.gnu.org/cgit/libtool.git/tree/build-aux/ltmain.in#n963 where the switch char "/" is duplicated, so instead of executing one command in the Windows subshell context, a subshell is spawned and hangs until manually exited e.g.: $ cmd //c echo "$1" Microsoft Windows [Version 10.0.19042.985] (c) Microsoft Corporation. All rights reserved. C:\...>exit $ The patch merely removes the extraneous duplicated switch char "/". As the patch is trivial, no copyright assignemnt should be required. --- build-aux/ltmain.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in index 96b3700347d5..4b8088903740 100644 --- a/build-aux/ltmain.in +++ b/build-aux/ltmain.in @@ -960,7 +960,7 @@ func_convert_core_msys_to_w32 () $debug_cmd # awkward: cmd appends spaces to result - func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | + func_convert_core_msys_to_w32_result=`( cmd /c echo "$1" ) 2>/dev/null | $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` } #end: func_convert_core_msys_to_w32