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Generate a version.h file

Related: OS#6626
Change-Id: I1fd09e23a9842cfa671f332bc52b380cbcdadf78
---
M .gitignore
M include/osmocom/core/Makefile.am
A include/osmocom/core/version.h.tpl
3 files changed, 28 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/70/40470/1

diff --git a/.gitignore b/.gitignore
index 29148d0..b14f67c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -106,6 +106,7 @@
 include/osmocom/core/crc*gen.h
 include/osmocom/core/bit*gen.h
 include/osmocom/core/socket_compat.h
+include/osmocom/core/version.h
 include/osmocom/gsm/gsm0503.h
 tests/conv/gsm0503_test_vectors.c
 
diff --git a/include/osmocom/core/Makefile.am b/include/osmocom/core/Makefile.am
index 980f813..9a949ae 100644
--- a/include/osmocom/core/Makefile.am
+++ b/include/osmocom/core/Makefile.am
@@ -59,6 +59,7 @@
 	timer_compat.h \
 	tun.h \
 	utils.h \
+	version.h \
 	write_queue.h \
 	sockaddr_str.h \
 	soft_uart.h \
@@ -101,4 +102,13 @@
 	$(AM_V_GEN)$(MKDIR_P) $(dir $@)
 	$(AM_V_GEN)sed -e's/XX/$(HAVE_SYS_SOCKET_H)/g' $< > $@
 
-EXTRA_DIST = socket_compat.h.tpl
+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" \
+		$< > $@
+
+EXTRA_DIST = socket_compat.h.tpl version.h.tpl
diff --git a/include/osmocom/core/version.h.tpl b/include/osmocom/core/version.h.tpl
new file mode 100644
index 0000000..b0da293
--- /dev/null
+++ b/include/osmocom/core/version.h.tpl
@@ -0,0 +1,16 @@
+#pragma once
+
+#define LIBOSMOCORE_VERSION {{VERSION}}
+#define LIBOSMOCORE_VERSION_STR "{{VERSION}}"
+
+#define LIBOSMOCORE_VERSION_MAJOR {{VERSION_MAJOR}}
+#define LIBOSMOCORE_VERSION_MINOR {{VERSION_MINOR}}
+#define LIBOSMOCORE_VERSION_PATCH {{VERSION_PATCH}}
+
+#define LIBOSMOCORE_VERSION_GREATER_EQUAL(major, minor, patch) \
+	(LIBOSMOCORE_VERSION_MAJOR > (major) || \
+	 (LIBOSMOCORE_VERSION_MAJOR == (major) && \
+	  LIBOSMOCORE_VERSION_MINOR > (minor)) || \
+	 (LIBOSMOCORE_VERSION_MAJOR == (major) && \
+	  LIBOSMOCORE_VERSION_MINOR == (minor) && \
+	  LIBOSMOCORE_VERSION_PATCH >= (patch)))

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