Improve robustness of filenotify-tests.el (Bug#23618)

[gnu-emacs] / configure.ac

diff --git a/configure.ac b/configure.ac
index 448c48d9caacab324e45b76d12d950c335497595..37a159f41172e61fe65bee9371d96546576be7ba 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -930,6 +930,7 @@ AS_IF([test $gl_gcc_warnings = no],
   nw="$nw -Wformat-nonliteral"      # we do this a lot
   nw="$nw -Wvla"                    # Emacs uses <vla.h>.
   nw="$nw -Wswitch-default"         # Too many warnings for now
+  nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
   nw="$nw -Winline"                 # OK to ignore 'inline'
   nw="$nw -Wstrict-overflow"        # OK to optimize assuming that
                                     # signed overflow has undefined behavior
@@ -966,6 +967,11 @@ AS_IF([test $gl_gcc_warnings = no],
     nw="$nw -Wcast-align"
   fi
 
+  # This causes too much noise in the MinGW build
+  if test $opsys = mingw32; then
+    nw="$nw -Wpointer-sign"
+  fi
+
   gl_MANYWARN_ALL_GCC([ws])
   gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
   for w in $ws; do
@@ -986,7 +992,12 @@ AS_IF([test $gl_gcc_warnings = no],
     gl_WARN_ADD([-Wno-unused-value])
   fi
 
-  AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
+  # This causes too much noise in the MinGW build
+  if test $opsys = mingw32; then
+    gl_WARN_ADD([-Wno-pointer-sign])
+  fi
+
+  AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
   AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
   AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
   [/* Enable compile-time and run-time bounds-checking, and some warnings,