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Source: https://src.fedoraproject.org/rpms/libverto.git#df027ff75fc194c3cc0a42d2134e93a443f25283

Work-around-libev-not-being-c89-compliant.patch

@@ -0,0 +1,26 @@
+From b6f0579cfd44a7e5b84b8239663a56f346acfc47 Mon Sep 17 00:00:00 2001
+From: Robbie Harwood <rharwood@redhat.com>
+Date: Fri, 1 Sep 2017 15:59:49 -0400
+Subject: [PATCH] Work around libev not being c89-compliant
+
+(cherry picked from commit c57599d7039d2435c306830b2edae999c462befb)
+[rharwood@redhat.com: Remove travis files]
+---
+ configure.ac | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 09ee123..b7b5908 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -7,8 +7,8 @@ m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],
+     [AC_USE_SYSTEM_EXTENSIONS],
+     [AC_GNU_SOURCE])
+ 
+-AC_PROG_CC_C89
+-for flag in -std=c89 -Wall -Wextra; do
++AC_PROG_CC_C99
++for flag in -Wall -Wextra; do
+   AC_TRY_COMPILE([], [return 0;], [CFLAGS="$CFLAGS $flag"],)
+ done
+