build: extract common code into macros

Signed-off-by: Ar Rakin <rakinar2@onesoftnet.eu.org>

Author: virtual-designer

configure.ac

@@ -128,15 +128,8 @@ AC_PROG_CPP
 AM_PROG_AR
 AC_PROG_LN_S
 AC_PROG_MKDIR_P
-
-AC_CHECK_PROGS([GPG], [gpg gpg2], [no])
-AC_CHECK_PROGS([CURL], [curl], [no])
-AC_CHECK_PROGS([WGET], [wget], [no])
-
-AS_IF([test "x$GPG" = "xno"], [GPG=""], [])
-AC_SUBST([GPG])
-AC_SUBST([WGET])
-AC_SUBST([CURL])
+CHECK_PROG_GPG
+CHECK_PROG_NETWORK_FETCH
 
 LT_INIT
 

m4/programs.m4

@@ -0,0 +1,16 @@
+#                 -*- Autoconf -*-
+
+AC_DEFUN([CHECK_PROG_GPG], [
+    AC_CHECK_PROGS([GPG], [gpg gpg2], [no])
+
+	AS_IF([test "x$GPG" = "xno"], [GPG=""], [])
+	AC_SUBST([GPG])
+])
+
+AC_DEFUN([CHECK_PROG_NETWORK_FETCH], [
+    AC_CHECK_PROGS([CURL], [curl], [no])
+	AC_CHECK_PROGS([WGET], [wget], [no])
+
+	AC_SUBST([WGET])
+	AC_SUBST([CURL])
+])