diff --git a/benchmarks/latmus.c b/benchmarks/latmus.c
index 402f3a3..58d84f2 100644
--- a/benchmarks/latmus.c
+++ b/benchmarks/latmus.c
@@ -469,7 +469,7 @@ static void dump_gnuplot(time_t duration)
 
 	paste_file_in("/proc/version", NULL);
 	paste_file_in("/proc/cmdline", NULL);
-	fprintf(plot_fp, "# libevl version: %s\n", libevl_version_string);
+	fprintf(plot_fp, "# libevl version: %s\n", evl_get_version().version_string);
 	fprintf(plot_fp, "# sampling period: %u microseconds\n", period);
 	paste_file_in("/sys/devices/virtual/clock/monotonic/gravity",
 		"clock gravity: ");
diff --git a/eshi/Makefile b/eshi/Makefile
index 019db3a..d3711c3 100644
--- a/eshi/Makefile
+++ b/eshi/Makefile
@@ -14,10 +14,11 @@ PIC_OBJFILES = $(SRCFILES:%.c=$(O_DIR)/%-pic.o)
 OBJFILES = $(SRCFILES:%.c=$(O_DIR)/%.o)
 DEPFILES = $(SRCFILES:%.c=$(O_DIR)/%.d)
 
-LIB_CPPFLAGS :=  $(BASE_CPPFLAGS)		\
-		 -I.				\
-		 -I../include/eshi		\
-		 -I../include
+LIB_CPPFLAGS :=  $(BASE_CPPFLAGS)	\
+		 -I.			\
+		 -I../include/eshi	\
+		 -I../include		\
+		 -I$(O_DIR)
 
 LIB_CFLAGS := $(LIB_CPPFLAGS) $(BASE_CFLAGS)
 
@@ -34,7 +35,8 @@ install: all
 	$(call inst-cmd,$(ARLIBNAME),$(INSTALL) -D $(O_DIR)/$(ARLIBNAME) $(DESTDIR)/$(libdir)/$(ARLIBNAME))
 
 clean clobber mrproper: output-Makefile
-	$(Q)$(RM) -f $(PIC_OBJFILES) $(OBJFILES) $(TARGETS) $(O_DIR)/$(DTSONAME) $(DEPFILES)
+	$(Q)$(RM) -f $(O_DIR)/git-stamp.h $(PIC_OBJFILES) $(OBJFILES) \
+		$(TARGETS) $(O_DIR)/$(DTSONAME) $(DEPFILES)
 
 $(O_DIR)/$(SOLIBNAME): $(PIC_OBJFILES)
 	$(call ld-cmd,$@,$(CC) -shared -Wl$(comma)-soname$(comma)$(DTSONAME) -o $(@) \
@@ -44,6 +46,9 @@ $(O_DIR)/$(SOLIBNAME): $(PIC_OBJFILES)
 $(O_DIR)/$(ARLIBNAME): $(OBJFILES)
 	$(call ar-cmd,$@,$(AR) ru $@ $(OBJFILES))
 
+$(O_DIR)/version-pic.o $(O_DIR)/version.o: override CFLAGS := $(CFLAGS) -DLIBSERIAL=\"$(EVL_SERIAL)\"
+version.c: $(O_DIR)/git-stamp.h
+
 $(O_DIR)/%-pic.o: %.c
 	$(call cc-pic-cmd,$@,$(CC) $(CFLAGS) -fPIC -c -o $@ $<)
 
diff --git a/eshi/init.c b/eshi/init.c
index ff00e52..87a42e8 100644
--- a/eshi/init.c
+++ b/eshi/init.c
@@ -43,11 +43,3 @@ bool eshi_is_initialized(void)
 {
 	return init_status == 0;
 }
-
-struct evl_version evl_get_version(void)
-{
-	return (struct evl_version){
-		.api_level = __EVL__,
-		.abi_level = -1,
-		};
-}
diff --git a/eshi/version.c b/eshi/version.c
new file mode 100644
index 0000000..a62c0c8
--- /dev/null
+++ b/eshi/version.c
@@ -0,0 +1,23 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2018 Philippe Gerum  <rpm@xenomai.org>
+ */
+
+#include <evl/evl.h>
+#include "git-stamp.h"
+
+#ifndef GIT_STAMP
+#define git_hash  ""
+#else
+#define git_hash  " -- " GIT_STAMP
+#endif
+
+struct evl_version evl_get_version(void)
+{
+	return (struct evl_version){
+		.api_level = __EVL__,
+		.abi_level = -1,
+		.version_string = "eshi." LIBSERIAL git_hash,
+		};
+}
diff --git a/include/eshi/evl/evl.h b/include/eshi/evl/evl.h
index 972911b..e11ef05 100644
--- a/include/eshi/evl/evl.h
+++ b/include/eshi/evl/evl.h
@@ -14,6 +14,7 @@
 struct evl_version {
 	int api_level;	/* libevl.so: __EVL__ */
 	int abi_level;	/* core: EVL_ABI_LEVEL, -1 for ESHI */
+	const char *version_string;
 };
 
 #ifdef __cplusplus
diff --git a/include/evl/evl.h b/include/evl/evl.h
index 2d84168..b0ed98c 100644
--- a/include/evl/evl.h
+++ b/include/evl/evl.h
@@ -25,6 +25,7 @@
 struct evl_version {
 	int api_level;	/* libevl.so: __EVL__ */
 	int abi_level;	/* core: EVL_ABI_LEVEL, -1 for ESHI */
+	const char *version_string;
 };
 
 #ifdef __cplusplus
@@ -39,8 +40,6 @@ void evl_sigdebug_handler(int sig, siginfo_t *si, void *ctxt);
 
 unsigned int evl_detect_fpu(void);
 
-extern const char *libevl_version_string;
-
 struct evl_version evl_get_version(void);
 
 #ifdef __cplusplus
diff --git a/lib/Makefile b/lib/Makefile
index a4dffa0..8dbb21a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -52,19 +52,6 @@ $(O_DIR)/syscall-pic.o $(O_DIR)/syscall.o: override CFLAGS := $(CFLAGS) -fomit-f
 $(O_DIR)/version-pic.o $(O_DIR)/version.o: override CFLAGS := $(CFLAGS) -DLIBSERIAL=\"$(EVL_SERIAL)\"
 version.c: $(O_DIR)/git-stamp.h
 
-$(O_DIR)/git-stamp.h: git-stamp
-	@if test -r ../.git; then							\
-	  stamp=`git --git-dir=../.git rev-list --abbrev-commit -1 HEAD`;		\
-	  if test \! -s $@ || grep -wvq $$stamp $@; then				\
-		date=`git --git-dir=../.git log -1 $$stamp --pretty=format:%ci`;	\
-		echo "#define GIT_STAMP \"#$$stamp ($$date)\"" > $@;			\
-	  fi;										\
-	elif test \! -r $@ -o -s $@; then						\
-	    $(RM) -f $@ && touch $@;							\
-	fi; true
-
-.PHONY: git-stamp
-
 $(O_DIR)/%-pic.o: %.c
 	$(call cc-pic-cmd,$@,$(CC) $(CFLAGS) -fPIC -c -o $@ $<)
 
diff --git a/lib/init.c b/lib/init.c
index fa6944a..041c1e2 100644
--- a/lib/init.c
+++ b/lib/init.c
@@ -251,11 +251,3 @@ unsigned int evl_detect_fpu(void)
 
 	return core_info.fpu_features;
 }
-
-struct evl_version evl_get_version(void)
-{
-	return (struct evl_version){
-		.api_level = __EVL__,
-		.abi_level = EVL_ABI_LEVEL,
-		};
-}
diff --git a/lib/version.c b/lib/version.c
index bc1657f..c3a5812 100644
--- a/lib/version.c
+++ b/lib/version.c
@@ -4,6 +4,8 @@
  * Copyright (C) 2018 Philippe Gerum  <rpm@xenomai.org>
  */
 
+#include <evl/evl.h>
+#include <uapi/evl/control.h>
 #include "git-stamp.h"
 
 #ifndef GIT_STAMP
@@ -12,4 +14,11 @@
 #define git_hash  " -- " GIT_STAMP
 #endif
 
-const char *libevl_version_string = "evl." LIBSERIAL git_hash;
+struct evl_version evl_get_version(void)
+{
+	return (struct evl_version){
+		.api_level = __EVL__,
+		.abi_level = EVL_ABI_LEVEL,
+		.version_string = "evl." LIBSERIAL git_hash,
+		};
+}
diff --git a/libversion.mk b/libversion.mk
index 73272b0..3d5c1b7 100644
--- a/libversion.mk
+++ b/libversion.mk
@@ -2,3 +2,16 @@
 
 EVL_SERIAL	:= 0
 EVL_IVERSION	:= 0
+
+$(O_DIR)/git-stamp.h: git-stamp
+	@if test -r ../.git; then							\
+	  stamp=`git --git-dir=../.git rev-list --abbrev-commit -1 HEAD`;		\
+	  if test \! -s $@ || grep -wvq $$stamp $@; then				\
+		date=`git --git-dir=../.git log -1 $$stamp --pretty=format:%ci`;	\
+		echo "#define GIT_STAMP \"#$$stamp ($$date)\"" > $@;			\
+	  fi;										\
+	elif test \! -r $@ -o -s $@; then						\
+	    $(RM) -f $@ && touch $@;							\
+	fi; true
+
+.PHONY: git-stamp
diff --git a/utils/evl.c b/utils/evl.c
index d635a78..15f1af9 100644
--- a/utils/evl.c
+++ b/utils/evl.c
@@ -77,7 +77,8 @@ int main(int argc, char *const argv[])
 			cmddir = optarg;
 			break;
 		case 'V':
-			printf("%s [ABI %d]\n", libevl_version_string,
+			printf("%s [ABI %d]\n",
+				evl_get_version().version_string,
 				EVL_ABI_LEVEL);
 			exit(0);
 		case '?':