1 files changed, 1 insertions, 1 deletions

diff --git a/lib-src/Makefile.in b/lib-src/Makefile.in
index ccb7cb928e7..63fe371ac91 100644
--- a/lib-src/Makefile.in
+++ b/lib-src/Makefile.in
@@ -346,7 +346,7 @@ getopt.o: ${srcdir}/getopt.c ${srcdir}/getopt.h
 getopt1.o: ${srcdir}/getopt1.c ${srcdir}/getopt.h
         ${CC} -c ${CPP_CFLAGS} ${srcdir}/getopt1.c
 alloca.o: ${srcdir}/alloca.c
-        ${CC} -c ${BASE_CFLAGS} ${srcdir}/alloca.c
+        ${CC} -Demacs -c ${BASE_CFLAGS} ${srcdir}/alloca.c
 
 #ifdef REGEXP_IN_LIBC
 REGEXPOBJ =