Just checking for a windres tool might hit even on Linux systems when building for Linux (e.g.: when using Gentoo and having built binutils with multitarget support), and will then fail to link properly at the end of the build. Check the host string before deciding whether to look for windres or not. --- configure.ac | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/configure.ac b/configure.ac index 29c6396..e6122b9 100644 --- a/configure.ac +++ b/configure.ac @@ -1676,8 +1676,13 @@ AC_SUBST([CYGWIN_EXTRA_PYTHON_LIBADD]) AC_SUBST([MINGW_EXTRA_LDFLAGS]) dnl Look for windres to build a Windows icon resource. -AC_CHECK_TOOL([WINDRES], [windres], [no]) -AM_CONDITIONAL([WITH_WIN_ICON], [test "$WINDRES" != "no"]) +case "$host" in + *cygwin* | *mingw* ) + AC_CHECK_TOOL([WINDRES], [windres], []) + ;; +esac + +AM_CONDITIONAL([WITH_WIN_ICON], [test "$WINDRES" != ""])