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Generate a version.h file

Related: OS#6626
Change-Id: I7761491ae767f1f21b2a3bba62d9ecb8a7d1226b
---
M .gitignore
M include/libgtpnl/Makefile.am
A include/libgtpnl/version.h.tpl
3 files changed, 28 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/libgtpnl refs/changes/11/40511/1

diff --git a/.gitignore b/.gitignore
index 56eefa6..c5757f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,5 @@
 tools/gtp-tunnel
 
 tests/qemu/_*
+
+include/libgtpnl/version.h
diff --git a/include/libgtpnl/Makefile.am b/include/libgtpnl/Makefile.am
index 90b0a2e..f17f9d1 100644
--- a/include/libgtpnl/Makefile.am
+++ b/include/libgtpnl/Makefile.am
@@ -1,4 +1,14 @@
+version.h: version.h.tpl
+	$(AM_V_GEN)$(MKDIR_P) $(dir $@)
+	$(AM_V_GEN)sed \
+		-e "s/{{VERSION}}/$$(echo '@VERSION@' | cut -d. -f1-3)/g" \
+		-e "s/{{VERSION_MAJOR}}/$$(echo '@VERSION@' | cut -d. -f1)/g" \
+		-e "s/{{VERSION_MINOR}}/$$(echo '@VERSION@' | cut -d. -f2)/g" \
+		-e "s/{{VERSION_PATCH}}/$$(echo '@VERSION@' | cut -d. -f3)/g" \
+		$< > $@
+
 pkginclude_HEADERS = \
 	gtp.h \
 	gtpnl.h \
+	version.h \
 	$(NULL)
diff --git a/include/libgtpnl/version.h.tpl b/include/libgtpnl/version.h.tpl
new file mode 100644
index 0000000..0a5a209
--- /dev/null
+++ b/include/libgtpnl/version.h.tpl
@@ -0,0 +1,16 @@
+#pragma once
+
+#define LIBGTPNL_VERSION {{VERSION}}
+#define LIBGTPNL_VERSION_STR "{{VERSION}}"
+
+#define LIBGTPNL_VERSION_MAJOR {{VERSION_MAJOR}}
+#define LIBGTPNL_VERSION_MINOR {{VERSION_MINOR}}
+#define LIBGTPNL_VERSION_PATCH {{VERSION_PATCH}}
+
+#define LIBGTPNL_VERSION_GREATER_EQUAL(major, minor, patch) \
+	(LIBGTPNL_VERSION_MAJOR > (major) || \
+	 (LIBGTPNL_VERSION_MAJOR == (major) && \
+	  LIBGTPNL_VERSION_MINOR > (minor)) || \
+	 (LIBGTPNL_VERSION_MAJOR == (major) && \
+	  LIBGTPNL_VERSION_MINOR == (minor) && \
+	  LIBGTPNL_VERSION_PATCH >= (patch)))

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