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Makefile: use $(MAKE) variable

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For some systems (i.e. FreeBSD) the default 'make' is not compatible with the
GNU extensions used by QEMU makefiles.

Calling the GNU make (gmake) works, however the help displayed refers to the
host 'make' and copy/paste leads to lot of unobvious errors:

$ gmake check-help
[...]
make check Run all tests

$ make check
make: "Makefile" line 28: Missing dependency operator
make: "Makefile" line 37: Need an operator
make: "Makefile" line 41: warning: duplicate script for target "git-submodule-update" ignored
make: "rules.mak" line 70: warning: duplicate script for target "%.o" ignored
make: Unknown modifier ' '
make: Unclosed substitution for eval modules (= missing)
make: "tests/Makefile.include" line 24: Variable/Value missing from "export"
make: "tests/" line 1: warning: Zero byte read from file, skipping rest of line.
make: "tests/" line 1: Need an operator
make: "Makefile" line 660: warning: duplicate script for target "ifneq" ignored
make: "Makefile" line 78: warning: using previous script for "ifneq" defined here
make: Fatal errors encountered -- cannot continue

Using the $(MAKE) variable, the help displayed is consistent with the 'make'
program used.

Backports commit b98a3bae2596fd9bf60f140d042c8e993daba930 from qemu
This commit is contained in:
Philippe Mathieu-Daudé 2018-03-05 14:15:55 -05:00 committed by Lioncash
parent ffa45adb57
commit 3e5d4f4ee8
No known key found for this signature in database
GPG Key ID: 4E3C3CC1031BA9C7
1 changed files with 2 additions and 2 deletions
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qemu/Makefile
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@ -15,7 +15,7 @@ ifneq ($(realpath $(SRC_PATH)),$(realpath .))
ifneq ($(wildcard $(SRC_PATH)/config-host.mak),)
$(error This is an out of tree build but your source tree ($(SRC_PATH)) \
seems to have been used for an in-tree build. You can fix this by running \
"make distclean && rm -rf *-linux-user *-softmmu" in your source tree)
"$(MAKE) distclean && rm -rf *-linux-user *-softmmu" in your source tree)
endif
endif
@ -87,7 +87,7 @@ endif
else \
echo "WARNING: $@ out of date.";\
fi; \
echo "Run \"make defconfig\" to regenerate."; \
echo "Run \"$(MAKE) defconfig\" to regenerate."; \
rm $@.tmp; \
fi; \
else \