Makefile: move functions and macros to own file

Move all define statements in its own file to tidy up the main
Makefile.

Change-Id: I451f2eeab2773982e02b2f2fdc9e8abe1cc87630
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.de>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/57935
Original-Reviewed-by: Nico Huber <nico.h@gmx.de>
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Original-Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/72236
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/Makefile b/Makefile
index fc5d8f4..96ecb29 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,8 @@
 # GNU General Public License for more details.
 #
 
+include Makefile.include
+
 PROGRAM = flashrom
 
 ###############################################################################
@@ -135,23 +137,6 @@
 DEPENDS_ON_LIBJAYLINK := \
 	CONFIG_JLINK_SPI \
 
-define mark_unsupported
-$(foreach p,$1, \
-	$(if $(filter $($(p)),yes), \
-		$(eval UNSUPPORTED_FEATURES += $(p)=yes), \
-		$(eval override $(p) := no)))
-endef
-
-define filter_deps
-$(strip $(foreach p,$1, \
-	$(if $(filter $($(p)),yes), \
-		$(p))))
-endef
-
-define disable_all
-$(foreach p,$1, \
-	$(eval override $(p) := no))
-endef
 
 ifeq ($(CONFIG_ENABLE_LIBUSB1_PROGRAMMERS), no)
 $(call disable_all,$(DEPENDS_ON_LIBUSB1))
@@ -871,16 +856,6 @@
 # to define test programs we use verbatim variables, which get exported
 # to environment variables and are referenced with $$<varname> later
 
-define COMPILER_TEST
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	return 0;
-}
-endef
-export COMPILER_TEST
-
 compiler: featuresavailable
 	@printf "Checking for a C compiler... " | tee -a $(BUILD_DETAILS_FILE)
 	@echo "$$COMPILER_TEST" > .test.c
@@ -905,77 +880,6 @@
 		  echo "This might work but usually does not, please beware." )
 endif
 
-define LIBPCI_TEST
-/* Avoid a failing test due to libpci header symbol shadowing breakage */
-#define index shadow_workaround_index
-#if !defined PCIUTILS_PCI_H
-#include <pci/pci.h>
-#else
-#include <pciutils/pci.h>
-#endif
-struct pci_access *pacc;
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	pacc = pci_alloc();
-	return 0;
-}
-endef
-export LIBPCI_TEST
-
-define PCI_GET_DEV_TEST
-/* Avoid a failing test due to libpci header symbol shadowing breakage */
-#define index shadow_workaround_index
-#if !defined PCIUTILS_PCI_H
-#include <pci/pci.h>
-#else
-#include <pciutils/pci.h>
-#endif
-struct pci_access *pacc;
-struct pci_dev *dev = {0};
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	pacc = pci_alloc();
-	dev = pci_get_dev(pacc, dev->domain, dev->bus, dev->dev, 1);
-	return 0;
-}
-endef
-export PCI_GET_DEV_TEST
-
-define LIBUSB1_TEST
-#include <stddef.h>
-#include <libusb.h>
-int main(int argc, char **argv)
-{
-	(void)argc;
-	(void)argv;
-	libusb_init(NULL);
-	return 0;
-}
-endef
-export LIBUSB1_TEST
-
-define LIBJAYLINK_TEST
-#include <stddef.h>
-#include <libjaylink/libjaylink.h>
-int main(int argc, char **argv)
-{
-	struct jaylink_context *ctx;
-
-	(void)argc;
-	(void)argv;
-
-	jaylink_init(&ctx);
-	jaylink_exit(ctx);
-
-	return 0;
-}
-endef
-export LIBJAYLINK_TEST
-
 hwlibs: compiler
 	@printf "" > .libdeps
 ifeq ($(CHECK_LIBPCI), yes)
@@ -1071,105 +975,6 @@
 	@false
 endif
 
-define FTDI_TEST
-#include <stdlib.h>
-#include <ftdi.h>
-struct ftdi_context *ftdic = NULL;
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	return ftdi_init(ftdic);
-}
-endef
-export FTDI_TEST
-
-define FTDI_232H_TEST
-#include <ftdi.h>
-enum ftdi_chip_type type = TYPE_232H;
-endef
-export FTDI_232H_TEST
-
-define UTSNAME_TEST
-#include <sys/utsname.h>
-struct utsname osinfo;
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	uname (&osinfo);
-	return 0;
-}
-endef
-export UTSNAME_TEST
-
-define LINUX_MTD_TEST
-#include <mtd/mtd-user.h>
-
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	return 0;
-}
-endef
-export LINUX_MTD_TEST
-
-define LINUX_SPI_TEST
-#include <linux/types.h>
-#include <linux/spi/spidev.h>
-
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	return 0;
-}
-endef
-export LINUX_SPI_TEST
-
-define LINUX_I2C_TEST
-#include <linux/i2c-dev.h>
-#include <linux/i2c.h>
-
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	return 0;
-}
-endef
-export LINUX_I2C_TEST
-
-define CLOCK_GETTIME_TEST
-#include <time.h>
-
-int main(int argc, char **argv)
-{
-	struct timespec res;
-	clock_gettime(CLOCK_REALTIME, &res);
-	return 0;
-}
-endef
-export CLOCK_GETTIME_TEST
-
-define NI845X_TEST
-#include <ni845x.h>
-
-int main(int argc, char **argv)
-{
-    (void) argc;
-    (void) argv;
-    char I2C_Device[256];
-    NiHandle Dev_Handle;
-    uInt32 NumberFound = 0;
-    ni845xFindDevice(I2C_Device, &Dev_Handle, &NumberFound);
-    ni845xCloseFindDeviceHandle(Dev_Handle);
-    return 0;
-}
-endef
-export NI845X_TEST
-
 features: compiler
 	@echo "FEATURES := yes" > .features.tmp
 ifneq ($(NEED_LIBFTDI), )
diff --git a/Makefile.include b/Makefile.include
new file mode 100644
index 0000000..62c040c
--- /dev/null
+++ b/Makefile.include
@@ -0,0 +1,213 @@
+#
+# This file is part of the flashrom project.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+
+# Here are functions and macros defined for the Makefile
+
+define mark_unsupported
+$(foreach p,$1, \
+	$(if $(filter $($(p)),yes), \
+		$(eval UNSUPPORTED_FEATURES += $(p)=yes), \
+		$(eval override $(p) := no)))
+endef
+
+define filter_deps
+$(strip $(foreach p,$1, \
+	$(if $(filter $($(p)),yes), \
+		$(p))))
+endef
+
+define disable_all
+$(foreach p,$1, \
+	$(eval override $(p) := no))
+endef
+
+
+define COMPILER_TEST
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	return 0;
+}
+endef
+export COMPILER_TEST
+
+define LIBPCI_TEST
+/* Avoid a failing test due to libpci header symbol shadowing breakage */
+#define index shadow_workaround_index
+#if !defined PCIUTILS_PCI_H
+#include <pci/pci.h>
+#else
+#include <pciutils/pci.h>
+#endif
+struct pci_access *pacc;
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	pacc = pci_alloc();
+	return 0;
+}
+endef
+export LIBPCI_TEST
+
+define PCI_GET_DEV_TEST
+/* Avoid a failing test due to libpci header symbol shadowing breakage */
+#define index shadow_workaround_index
+#if !defined PCIUTILS_PCI_H
+#include <pci/pci.h>
+#else
+#include <pciutils/pci.h>
+#endif
+struct pci_access *pacc;
+struct pci_dev *dev = {0};
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	pacc = pci_alloc();
+	dev = pci_get_dev(pacc, dev->domain, dev->bus, dev->dev, 1);
+	return 0;
+}
+endef
+export PCI_GET_DEV_TEST
+
+define LIBUSB1_TEST
+#include <stddef.h>
+#include <libusb.h>
+int main(int argc, char **argv)
+{
+	(void)argc;
+	(void)argv;
+	libusb_init(NULL);
+	return 0;
+}
+endef
+export LIBUSB1_TEST
+
+define LIBJAYLINK_TEST
+#include <stddef.h>
+#include <libjaylink/libjaylink.h>
+int main(int argc, char **argv)
+{
+	struct jaylink_context *ctx;
+
+	(void)argc;
+	(void)argv;
+
+	jaylink_init(&ctx);
+	jaylink_exit(ctx);
+
+	return 0;
+}
+endef
+export LIBJAYLINK_TEST
+
+define FTDI_TEST
+#include <stdlib.h>
+#include <ftdi.h>
+struct ftdi_context *ftdic = NULL;
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	return ftdi_init(ftdic);
+}
+endef
+export FTDI_TEST
+
+define FTDI_232H_TEST
+#include <ftdi.h>
+enum ftdi_chip_type type = TYPE_232H;
+endef
+export FTDI_232H_TEST
+
+define UTSNAME_TEST
+#include <sys/utsname.h>
+struct utsname osinfo;
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	uname (&osinfo);
+	return 0;
+}
+endef
+export UTSNAME_TEST
+
+define LINUX_MTD_TEST
+#include <mtd/mtd-user.h>
+
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	return 0;
+}
+endef
+export LINUX_MTD_TEST
+
+define LINUX_SPI_TEST
+#include <linux/types.h>
+#include <linux/spi/spidev.h>
+
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	return 0;
+}
+endef
+export LINUX_SPI_TEST
+
+define LINUX_I2C_TEST
+#include <linux/i2c-dev.h>
+#include <linux/i2c.h>
+
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	return 0;
+}
+endef
+export LINUX_I2C_TEST
+
+define CLOCK_GETTIME_TEST
+#include <time.h>
+
+int main(int argc, char **argv)
+{
+	struct timespec res;
+	clock_gettime(CLOCK_REALTIME, &res);
+	return 0;
+}
+endef
+export CLOCK_GETTIME_TEST
+
+define NI845X_TEST
+#include <ni845x.h>
+
+int main(int argc, char **argv)
+{
+    (void) argc;
+    (void) argv;
+    char I2C_Device[256];
+    NiHandle Dev_Handle;
+    uInt32 NumberFound = 0;
+    ni845xFindDevice(I2C_Device, &Dev_Handle, &NumberFound);
+    ni845xCloseFindDeviceHandle(Dev_Handle);
+    return 0;
+}
+endef
+export NI845X_TEST