diff --git a/Makefile b/Makefile
index 31a9912..0d490bf 100644
--- a/Makefile
+++ b/Makefile
@@ -856,6 +856,7 @@
 compiler: featuresavailable
 	@printf "Checking for a C compiler... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$COMPILER_TEST" > .test.c
+	@printf "\nexec: %s\n" "$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .test.c -o .test$(EXEC_SUFFIX)" >>$(BUILD_DETAILS_FILE)
 	@{ { { { { $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .test.c -o .test$(EXEC_SUFFIX) >&2 && \
 		echo "found." || { echo "not found."; \
 		rm -f .test.c .test$(EXEC_SUFFIX); exit 1; }; } 2>>$(BUILD_DETAILS_FILE); echo $? >&3 ; } | tee -a $(BUILD_DETAILS_FILE) >&4; } 3>&1;} | { read rc ; exit ${rc}; } } 4>&1
@@ -938,6 +939,7 @@
 ifeq ($(CHECK_LIBPCI), yes)
 	@printf "Checking for libpci headers... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$LIBPCI_TEST" > .test.c
+	@printf "\nexec: %s\n" "$(CC) -c $(CPPFLAGS) $(CFLAGS) .test.c -o .test.o" >>$(BUILD_DETAILS_FILE)
 	@{ { { { { $(CC) -c $(CPPFLAGS) $(CFLAGS) .test.c -o .test.o >&2 && \
 		echo "found." || { echo "not found."; echo;			\
 		echo "Please install libpci headers."; \
@@ -945,14 +947,17 @@
 		rm -f .test.c .test.o; exit 1; }; } 2>>$(BUILD_DETAILS_FILE); echo $? >&3 ; } | tee -a $(BUILD_DETAILS_FILE) >&4; } 3>&1;} | { read rc ; exit ${rc}; } } 4>&1
 	@printf "Checking version of pci_get_dev... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$PCI_GET_DEV_TEST" > .test.c
+	@printf "\nexec: %s\n" "$(CC) -c $(CPPFLAGS) $(CFLAGS) .test.c -o .test.o" >>$(BUILD_DETAILS_FILE)
 	@ { $(CC) -c $(CPPFLAGS) $(CFLAGS) .test.c -o .test.o >&2 && \
 		( echo "new version (including PCI domain parameter)."; echo "OLD_PCI_GET_DEV := no" >> .libdeps ) ||	\
 		( echo "old version (without PCI domain parameter)."; echo "OLD_PCI_GET_DEV := yes" >> .libdeps ) } 2>>$(BUILD_DETAILS_FILE) | tee -a $(BUILD_DETAILS_FILE)
 	@printf "Checking if libpci is present and sufficient... " | tee -a $(BUILD_DETAILS_FILE)
+	@printf "\nexec: %s\n" "$(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) $(PCILIBS)" >>$(BUILD_DETAILS_FILE)
 	@{ { { { $(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) $(PCILIBS) 2>>$(BUILD_DETAILS_FILE) >&2 && \
 		echo "yes." || { echo "no.";							\
 		printf "Checking if libz+libpci are present and sufficient..." ; \
-		{ $(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) $(PCILIBS) -lz >&2 && \
+		{ printf "\nexec: %s\n" "$(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) $(PCILIBS) -lz" >>$(BUILD_DETAILS_FILE) ; \
+		$(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) $(PCILIBS) -lz >&2 && \
 		echo "yes." && echo "NEEDLIBZ := yes" > .libdeps } || { echo "no."; echo;	\
 		echo "Please install libpci (package pciutils) and/or libz.";			\
 		echo "See README for more information."; echo;				\
@@ -962,12 +967,14 @@
 ifeq ($(CHECK_LIBUSB0), yes)
 	@printf "Checking for libusb-0.1/libusb-compat headers... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$LIBUSB0_TEST" > .test.c
+	@printf "\nexec: %s\n" "$(CC) -c $(CPPFLAGS) $(CFLAGS) .test.c -o .test.o" >>$(BUILD_DETAILS_FILE)
 	@{ { { { { $(CC) -c $(CPPFLAGS) $(CFLAGS) .test.c -o .test.o >&2 && \
 		echo "found." || { echo "not found."; echo;				\
 		echo "Please install libusb-0.1 headers or libusb-compat headers.";	\
 		echo "See README for more information."; echo;				\
 		rm -f .test.c .test.o; exit 1; }; } 2>>$(BUILD_DETAILS_FILE); echo $? >&3 ; } | tee -a $(BUILD_DETAILS_FILE) >&4; } 3>&1;} | { read rc ; exit ${rc}; } } 4>&1
 	@printf "Checking if libusb-0.1 is usable... " | tee -a $(BUILD_DETAILS_FILE)
+	@printf "\nexec: %s\n" "$(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) $(USBLIBS)" >>$(BUILD_DETAILS_FILE)
 	@{ { { { { $(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) $(USBLIBS) >&2 && \
 		echo "yes." || { echo "no.";						\
 		echo "Please install libusb-0.1 or libusb-compat.";			\
@@ -1055,10 +1062,12 @@
 ifeq ($(NEED_FTDI), yes)
 	@printf "Checking for FTDI support... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$FTDI_TEST" > .featuretest.c
+	@printf "\nexec: %s\n" "$(CC) $(CPPFLAGS) $(CFLAGS) $(FTDI_INCLUDES) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) $(FTDILIBS) $(LIBS)" >>$(BUILD_DETAILS_FILE)
 	@ { $(CC) $(CPPFLAGS) $(CFLAGS) $(FTDI_INCLUDES) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) $(FTDILIBS) $(LIBS) >&2 && \
 	(	echo "found."; echo "FTDISUPPORT := yes" >> .features.tmp ; \
 		printf "Checking for FT232H support in libftdi... " ; \
 		echo "$$FTDI_232H_TEST" >> .featuretest.c ; \
+		printf "\nexec: %s\n" "$(CC) $(CPPFLAGS) $(CFLAGS) $(FTDI_INCLUDES) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) $(FTDILIBS) $(LIBS)" >>$(BUILD_DETAILS_FILE) ; \
 		{ $(CC) $(CPPFLAGS) $(CFLAGS) $(FTDI_INCLUDES) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) $(FTDILIBS) $(LIBS) >&2 && \
 			( echo "found."; echo "FT232H := yes" >> .features.tmp ) ||	\
 			( echo "not found."; echo "FT232H := no" >> .features.tmp ) } \
@@ -1069,6 +1078,7 @@
 ifeq ($(CONFIG_LINUX_SPI), yes)
 	@printf "Checking if Linux SPI headers are present... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$LINUX_SPI_TEST" > .featuretest.c
+	@printf "\nexec: %s\n" "$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX)" >>$(BUILD_DETAILS_FILE)
 	@ { $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) >&2 && \
 		( echo "yes."; echo "LINUX_SPI_SUPPORT := yes" >> .features.tmp ) ||	\
 		( echo "no."; echo "LINUX_SPI_SUPPORT := no" >> .features.tmp ) } \
@@ -1077,6 +1087,7 @@
 ifeq ($(NEED_LINUX_I2C), yes)
 	@printf "Checking if Linux I2C headers are present... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$LINUX_I2C_TEST" > .featuretest.c
+	@printf "\nexec: %s\n" "$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX)" >>$(BUILD_DETAILS_FILE)
 	@ { $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) >&2 && \
 		( echo "yes."; echo "LINUX_I2C_SUPPORT := yes" >> .features.tmp ) ||	\
 		( echo "no."; echo "LINUX_I2C_SUPPORT := no" >> .features.tmp ) } \
@@ -1084,6 +1095,7 @@
 endif
 	@printf "Checking for utsname support... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$UTSNAME_TEST" > .featuretest.c
+	@printf "\nexec: %s\n" "$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX)" >>$(BUILD_DETAILS_FILE)
 	@ { $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) >&2 && \
 		( echo "found."; echo "UTSNAME := yes" >> .features.tmp ) ||	\
 		( echo "not found."; echo "UTSNAME := no" >> .features.tmp ) } 2>>$(BUILD_DETAILS_FILE) | tee -a $(BUILD_DETAILS_FILE)