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-rw-r--r--configure.ac7
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 9d5f74d..c0e9939 100644
--- a/configure.ac
+++ b/configure.ac
@@ -101,6 +101,13 @@ AC_PROG_CXX([c++ g++ clang++])
AX_CXX_COMPILE_STDCXX(17, noext, mandatory)
AC_CHECK_TOOL(AR, ar)
+# If ptrdiff_t does not alias int, we need a workaround
+# in Scintilla.
+AX_PTRDIFF_ALIASES_INT
+if [[ "x$ax_cv_ptrdiff_aliases_int" = "xno" ]]; then
+ SCINTILLA_CXXFLAGS="$SCINTILLA_CXXFLAGS -DPTRDIFF_DOESNT_ALIAS_INT"
+fi
+
# Whether $CC is Clang
AM_CONDITIONAL(CLANG, [$CC --version | $GREP -i clang >/dev/null])