makefile: make verbose dep check more verbose

diff --git a/Makefile b/Makefile
index 4dad41808a8f2ae43429420219dbc18aea9e8f4c..bb2f743c7e766672425ec614fc6b01484e9ec6b1 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -50,8 +50,9 @@ WGET               ?= wget
 MV                 ?= mv
 UNZIP              ?= unzip
 
-STDOUT_TO_DEVNULL  ?= >/dev/null
-STDERR_TO_DEVNULL  ?= 2>/dev/null
+FD_TO_DEVNULL      ?= >/dev/null
+STDOUT_TO_DEVNULL  ?= 1$(FD_TO_DEVNULL)
+STDERR_TO_DEVNULL  ?= 2$(FD_TO_DEVNULL)
 STDERR_TO_STDOUT   ?= 2>&1
 TO_DEVNULL         ?= $(STDOUT_TO_DEVNULL) $(STDERR_TO_STDOUT)
 
@@ -250,12 +251,12 @@ dependencies-check:
 else
 dependencies-check:
        @$(ECHO)
-       @if [ x"$(DEPENDENCIES_CHECK)" = x"verbose" ]; then set -x; fi; \
+       @if [ x"$(DEPENDENCIES_CHECK)" = x"verbose" ]; then set -x; exec 3>&2; else exec 3$(FD_TO_DEVNULL); fi; \
        failed=0; \
        checkbinary() \
        { \
                $(ECHO_NOLF) "Checking for $$2 ($$1)... "; \
-               $$2 --help $(TO_DEVNULL); \
+               $$2 --help >&3 $(STDERR_TO_STDOUT); \
                if [ $$? != 127 ]; then \
                        $(ECHO) "found."; \
                else \
@@ -294,14 +295,14 @@ dependencies-check:
        [ -n "$(OTOOL)" ] && checkbinary xcode "$(OTOOL)"; \
        [ "$$failed" = "0" ] && $(ECHO) All required tools have been found!
        @$(ECHO)
-       @if [ x"$(DEPENDENCIES_CHECK)" = x"verbose" ]; then set -x; fi; \
+       @if [ x"$(DEPENDENCIES_CHECK)" = x"verbose" ]; then set -x; exec 3>&2; else exec 3$(FD_TO_DEVNULL); fi; \
        failed=0; \
        checkheader() \
        { \
                $(ECHO_NOLF) "Checking for $$2 ($$1)... "; \
                if \
-                       $(CXX) conftest.cpp $(CFLAGS) $(CXXFLAGS) $(CFLAGS_COMMON) $(CXXFLAGS_COMMON) $(CPPFLAGS) $(CPPFLAGS_COMMON) $$4 -DCONFTEST_HEADER="<$$2>" -DCONFTEST_SYMBOL="$$3" $(TARGET_ARCH) $(LDFLAGS) -c -o conftest.o $(TO_DEVNULL) && \
-                       $(CXX) conftest.o $(LDFLAGS) $(LDFLAGS_COMMON) $$5 $(LIBS_COMMON) $(LIBS) -o conftest $(TO_DEVNULL); \
+                       $(CXX) conftest.cpp $(CFLAGS) $(CXXFLAGS) $(CFLAGS_COMMON) $(CXXFLAGS_COMMON) $(CPPFLAGS) $(CPPFLAGS_COMMON) $$4 -DCONFTEST_HEADER="<$$2>" -DCONFTEST_SYMBOL="$$3" $(TARGET_ARCH) $(LDFLAGS) -c -o conftest.o >&3 $(STDERR_TO_STDOUT) && \
+                       $(CXX) conftest.o $(LDFLAGS) $(LDFLAGS_COMMON) $$5 $(LIBS_COMMON) $(LIBS) -o conftest >&3 $(STDERR_TO_STDOUT); \
                then \
                        $(RM) conftest conftest.o conftest.d; \
                        $(ECHO) "found."; \