allow to compile several frontends at once (and produce several binaries)

[lyx.git] / lib / configure.m4

diff --git a/lib/configure.m4 b/lib/configure.m4
index 244ac42471f1e5a9d5c931a7f42704f953e13e47..2ad6325e8260dfb62d8a58aef250c5cc3ca57738 100644 (file)
--- a/lib/configure.m4
+++ b/lib/configure.m4
@@ -94,6 +94,16 @@ changequote(,)dnl
 dnl ######### End M4 macros #############################################
 
 
+# Be Bourne compatible (taken from autoconf 2.53)
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+  set -o posix
+fi
+
+
+
 ####some configuration variables
 outfile=lyxrc.defaults
 rc_entries=