[PATCH v2 09/10] tools/libs: Add rule to generate headers.lst

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

abi-dumper needs a list of the public header files for shared objects, and
only accepts this in the form of a file.

No functional change.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>
---
CC: Ian Jackson <iwj@xxxxxxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Juergen Gross <jgross@xxxxxxxx>

v2:
 * Use set -e to avoid truncated content on transient errors
---
 tools/libs/.gitignore | 1 +
 tools/libs/libs.mk    | 9 ++++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 tools/libs/.gitignore

diff --git a/tools/libs/.gitignore b/tools/libs/.gitignore
new file mode 100644
index 0000000000..4a13126144
--- /dev/null
+++ b/tools/libs/.gitignore
@@ -0,0 +1 @@
+*/headers.lst
diff --git a/tools/libs/libs.mk b/tools/libs/libs.mk
index 0b3381755a..7970627ac8 100644
--- a/tools/libs/libs.mk
+++ b/tools/libs/libs.mk
@@ -76,6 +76,10 @@ endif
 
 headers.chk: $(AUTOINCS)
 
+headers.lst: FORCE
+       @{ set -e; $(foreach h,$(LIBHEADERS),echo $(h);) } > $@.tmp
+       @$(call move-if-changed,$@.tmp,$@)
+
 libxen$(LIBNAME).map:
        echo 'VERS_$(MAJOR).$(MINOR) { global: *; };' >$@
 
@@ -118,9 +122,12 @@ TAGS:
 clean:
        rm -rf *.rpm $(LIB) *~ $(DEPS_RM) $(LIB_OBJS) $(PIC_OBJS)
        rm -f lib$(LIB_FILE_NAME).so.$(MAJOR).$(MINOR) 
lib$(LIB_FILE_NAME).so.$(MAJOR)
-       rm -f headers.chk
+       rm -f headers.chk headers.lst
        rm -f $(PKG_CONFIG)
        rm -f _paths.h
 
 .PHONY: distclean
 distclean: clean
+
+.PHONY: FORCE
+FORCE:
-- 
2.11.0