There appears to be no need for -I. in SOLARINC

See the mail sub-thread starting at
<https://lists.freedesktop.org/archives/libreoffice/2017-October/078609.html>
"Re: C[++]: Normalizing include syntax ("" vs <>)".

Change-Id: Ibb636be643789d455e771fcd54913dd3cdd03815
Reviewed-on: https://gerrit.libreoffice.org/43284
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

configure.ac

@@ -4296,7 +4296,7 @@ WORKDIR="${BUILDDIR}/workdir"
 INSTDIR="${BUILDDIR}/instdir"
 INSTROOTBASE=${INSTDIR}${INSTROOTBASESUFFIX}
 INSTROOT=${INSTROOTBASE}${INSTROOTCONTENTSUFFIX}
-SOLARINC="-I. -I$SRC_ROOT/include $SOLARINC"
+SOLARINC="-I$SRC_ROOT/include $SOLARINC"
 AC_SUBST(COM)
 AC_SUBST(CPUNAME)
 AC_SUBST(RTL_OS)

solenv/gbuild/SdiTarget.mk

@@ -63,7 +63,7 @@ $(call gb_SdiTarget_get_clean_target,%) :
 			$(call gb_SdiTarget_get_target,$*))
 
 define gb_SdiTarget_SdiTarget
-$(call gb_SdiTarget_get_target,$(1)) : INCLUDE := $$(subst -I. ,-I$$(dir $(SRCDIR)/$(1)) ,$$(SOLARINC))
+$(call gb_SdiTarget_get_target,$(1)) : INCLUDE := $(SOLARINC)
 $(call gb_SdiTarget_get_target,$(1)) : EXPORTS := $(SRCDIR)/$(2).sdi
 ifeq ($(gb_FULLDEPS),$(true))
 -include $(call gb_SdiTarget_get_dep_target,$(1))

solenv/gbuild/platform/com_GCC_defs.mk

@@ -193,7 +193,7 @@ gb_DEBUG_CXXFLAGS := $(FNO_DEFAULT_INLINE)
 
 
 gb_LinkTarget_INCLUDE :=\
-    $(subst -I. , ,$(SOLARINC)) \
+    $(SOLARINC) \
     -I$(BUILDDIR)/config_$(gb_Side) \
 
 ifeq ($(COM_IS_CLANG),TRUE)

solenv/gbuild/platform/com_MSC_class.mk

@@ -109,7 +109,7 @@ gb_LinkTarget_CXXFLAGS := $(gb_CXXFLAGS)
 gb_LinkTarget_CXXCLRFLAGS := $(gb_CXXCLRFLAGS)
 
 gb_LinkTarget_INCLUDE :=\
-	$(subst -I. , ,$(SOLARINC)) \
+	$(SOLARINC) \
 	$(foreach inc,$(subst ;, ,$(JDKINC)),-I$(inc)) \
 	-I$(BUILDDIR)/config_$(gb_Side) \
 
@@ -530,7 +530,7 @@ gb_AUTOCONF_WRAPPERS = \
     LD="$(shell cygpath -w $(COMPATH)/bin/link.exe) -nologo"
 
 gb_ExternalProject_INCLUDE := \
-	$(subst -I,,$(subst $(WHITESPACE),;,$(subst -I. , ,$(SOLARINC))))
+	$(subst -I,,$(subst $(WHITESPACE),;,$(SOLARINC)))
 
 # InstallScript class