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hardcoding cpp does not work when cross compiling systemd.
since it will use the include headers from host system and
syscalls are different for different architectures.
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Upstream-Status: Pending
Index: systemd-187/Makefile.am
===================================================================
--- systemd-187.orig/Makefile.am 2012-07-29 16:39:57.628405921 -0700
+++ systemd-187/Makefile.am 2012-07-29 16:40:37.248405921 -0700
@@ -1026,7 +1026,7 @@
src/core/syscall-to-name.h
src/core/syscall-list.txt: Makefile
- $(AM_V_GEN)cpp $(AM_CPPFLAGS) $(CPPFLAGS) -dM -include sys/syscall.h < /dev/null | $(AWK) '/^#define[ \t]+__NR_[^ ]+[ \t]+[0-9]/ { sub(/__NR_/, "", $$2); print $$2; }' > $@
+ $(AM_V_GEN)$(CPP) $(AM_CPPFLAGS) $(CPPFLAGS) -dM -include sys/syscall.h < /dev/null | $(AWK) '/^#define[ \t]+__NR_[^ ]+[ \t]+[0-9]/ { sub(/__NR_/, "", $$2); print $$2; }' > $@
src/core/syscall-from-name.gperf: src/core/syscall-list.txt Makefile
$(AM_V_GEN)$(AWK) 'BEGIN{ print "struct syscall_name { const char* name; int id; };"; print "%null-strings"; print "%%";} { printf "%s, __NR_%s\n", $$1, $$1 }' < $< > $@
@@ -2199,7 +2199,7 @@
src/udev/keymap/keys.txt: Makefile
$(AM_V_at)mkdir -p src/udev/keymap
- $(AM_V_GEN)cpp $(AM_CPPFLAGS) $(CPPFLAGS) -dM -include linux/input.h < /dev/null | $(AWK) '/^#define[ \t]+KEY_[^ ]+[ \t]+[0-9]/ { if ($$2 != "KEY_MAX") { print $$2 } }' | sed 's/^KEY_COFFEE$$/KEY_SCREENLOCK/' > $@
+ $(AM_V_GEN)$(CPP) $(AM_CPPFLAGS) $(CPPFLAGS) -dM -include linux/input.h < /dev/null | $(AWK) '/^#define[ \t]+KEY_[^ ]+[ \t]+[0-9]/ { if ($$2 != "KEY_MAX") { print $$2 } }' | sed 's/^KEY_COFFEE$$/KEY_SCREENLOCK/' > $@
src/udev/keymap/keys-from-name.gperf: src/udev/keymap/keys.txt Makefile
$(AM_V_GEN)$(AWK) 'BEGIN{ print "struct key { const char* name; unsigned short id; };"; print "%null-strings"; print "%%";} { print $$1 ", " $$1 }' < $< > $@
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