lsof, m4: use variables from BR instead of uclibc

UCLIB_HAS_.* is not defined in Buildroot space, so the conditions always
evaluate to the same result. Use appropriate Buildroot variables.

Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>

package/lsof/lsof.mk

@@ -38,11 +38,11 @@ $(LSOF_DIR)/.configured: $(LSOF_DIR)/.unpacked
 	touch $(LSOF_DIR)/.configured
 
 $(LSOF_DIR)/lsof_$(LSOF_VERSION)_src/$(LSOF_BINARY): $(LSOF_DIR)/.configured
-ifeq ($(UCLIBC_HAS_WCHAR),)
+ifeq ($(BR2_USE_WCHAR),)
 	$(SED) 's,^#define[[:space:]]*HASWIDECHAR.*,#undef HASWIDECHAR,' $(LSOF_DIR)/lsof_$(LSOF_VERSION)_src/machine.h
 	$(SED) 's,^#define[[:space:]]*WIDECHARINCL.*,,' $(LSOF_DIR)/lsof_$(LSOF_VERSION)_src/machine.h
 endif
-ifeq ($(UCLIBC_HAS_LOCALE),)
+ifeq ($(BR2_ENABLE_LOCALE),)
 	$(SED) 's,^#define[[:space:]]*HASSETLOCALE.*,#undef HASSETLOCALE,' $(LSOF_DIR)/lsof_$(LSOF_VERSION)_src/machine.h
 endif
 	$(MAKE) $(TARGET_CONFIGURE_OPTS) DEBUG="$(TARGET_CFLAGS) $(BR2_LSOF_CFLAGS)" -C $(LSOF_DIR)/lsof_$(LSOF_VERSION)_src

package/m4/m4.mk

@@ -15,7 +15,7 @@ M4_TARGET_BINARY:=usr/bin/m4
 ifeq ($(UCLIBC_HAS_REGEX),y)
 gl_cv_func_re_compile_pattern_working=gl_cv_func_re_compile_pattern_working=yes
 endif
-ifneq ($(UCLIBC_HAS_WCHAR),y)
+ifneq ($(BR2_USE_WCHAR),y)
 gt_cv_c_wchar_t=gt_cv_c_wchar_t=no
 gl_cv_absolute_wchar_h=gl_cv_absolute_wchar_h=__fpending.h
 endif