build: Fix make distcheck for input plugin

suspend.c is a symlink generated at build time, therefore it should be
created on build directory. Additionally, it is necessary to add
-I$(srcdir)/profiles/input to CPPFLAGS so suspend.h can be found (the
compiler does not follow symlinks prior to resolving #include
directives).

diff --git a/Makefile.am b/Makefile.am
index d49e8a0..c398e74 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -366,6 +366,10 @@ if MCAP
 AM_CPPFLAGS += -I$(builddir)/health
 endif
 
+if HOGPLUGIN
+AM_CPPFLAGS += -I$(srcdir)/profiles/input
+endif
+
 unit_objects =
 
 if TEST
@@ -405,7 +409,7 @@ profiles/sap/sap.c: profiles/sap/@SAP_DRIVER@
        $(AM_V_GEN)$(LN_S) $(abs_top_srcdir)/$< $@
 
 profiles/input/suspend.c: profiles/input/@HOG_SUSPEND_DRIVER@
-       $(AM_V_GEN)$(LN_S) $(abs_top_srcdir)/$< $@
+       $(AM_V_GEN)$(LN_S) $(abs_top_builddir)/$< $@
 
 scripts/%.rules:
        $(AM_V_GEN)cp $(subst 97-,,$@) $@