Description: <short summary of the patch>
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 .
 klystrack (0.20171212-5) unstable; urgency=medium
 .
   * Add -fcommon to CFLAGS. (Closes: #957407)
   * Bump standards version to 4.5.0.
   * Bump debhelper version to 13, drop d/compat.
Author: Gürkan Myczko <gurkan@phys.ethz.ch>
Bug-Debian: https://bugs.debian.org/957407

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Last-Update: 2020-10-12

--- klystrack-0.20171212.orig/klystrack/Makefile
+++ klystrack-0.20171212/klystrack/Makefile
@@ -19,7 +19,7 @@ SDL_IMAGEVER := 2.0.1
 THEMES :=
 REV := cp -f
 
-CFLAGS := $(MACHINE) -ftree-vectorize -std=gnu99 --no-strict-aliasing
+CFLAGS := $(MACHINE) -ftree-vectorize -std=gnu99 --no-strict-aliasing -fcommon
 
 DATE_FMT = %Y%m%d
 ifdef SOURCE_DATE_EPOCH
--- klystrack-0.20171212.orig/klystron/Makefile
+++ klystrack-0.20171212/klystron/Makefile
@@ -36,7 +36,7 @@ else
 endif
 
 ifndef CFLAGS
-CFLAGS = $(MACHINE) -ftree-vectorize
+CFLAGS = $(MACHINE) -ftree-vectorize -fcommon
 endif
 
 # What include flags to pass to the compiler
