maint: factor out STREQ definition

* src/main.c (STREQ): Remove definition.
* src/pcresearch.c: (STREQ): Likewise.
* src/system.h (STREQ): Define it here instead.

3 files changed, 3 insertions, 4 deletions

diff --git a/src/main.c b/src/main.c
index e3b5186b..6750007f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -52,8 +52,6 @@
 #define SEP_CHAR_REJECTED '-'
 #define SEP_STR_GROUP    "--"
 
-#define STREQ(a, b) (strcmp (a, b) == 0)
-
 #define AUTHORS \
   proper_name ("Mike Haertel"), \
   _("others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>")
diff --git a/src/pcresearch.c b/src/pcresearch.c
index a15f598d..2e95f2df 100644
--- a/src/pcresearch.c
+++ b/src/pcresearch.c
@@ -29,8 +29,6 @@
 # include <langinfo.h>
 #endif
 
-#define STREQ(a, b) (strcmp (a, b) == 0)
-
 #if HAVE_LIBPCRE
 /* Compiled internal form of a Perl regular expression.  */
 static pcre *cre;
diff --git a/src/system.h b/src/system.h
index 426d8937..95208dff 100644
--- a/src/system.h
+++ b/src/system.h
@@ -52,4 +52,7 @@ enum { EXIT_TROUBLE = 2 };
 #endif
 
 #include "unlocked-io.h"
+
+#define STREQ(a, b) (strcmp (a, b) == 0)
+
 #endif