configure: ignore --make

Setting the MAKE variable to a GNU Make executable does not really have
any effect: if a non-GNU Make is used, the QEMU Makefile will fail to
parse.  Just remove everything related to --make and $make as dead code.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

configure

@@ -400,28 +400,23 @@ gnu/kfreebsd)
 ;;
 freebsd)
   bsd="yes"
-  make="${MAKE-gmake}"
   # needed for kinfo_getvmmap(3) in libutil.h
 ;;
 dragonfly)
   bsd="yes"
-  make="${MAKE-gmake}"
 ;;
 netbsd)
   bsd="yes"
-  make="${MAKE-gmake}"
 ;;
 openbsd)
   bsd="yes"
-  make="${MAKE-gmake}"
 ;;
 darwin)
   bsd="yes"
   darwin="yes"
 ;;
 sunos)
   solaris="yes"
-  make="${MAKE-gmake}"
 ;;
 haiku)
   pie="no"
@@ -525,9 +520,6 @@ case "$cpu" in
     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 esac
 
-: ${make=${MAKE-make}}
-
-
 check_py_version() {
     # We require python >= 3.7.
     # NB: a True python conditional creates a non-zero return code (Failure)
@@ -630,7 +622,7 @@ for opt do
   ;;
   --objcc=*)
   ;;
-  --make=*) make="$optarg"
+  --make=*)
   ;;
   --install=*)
   ;;
@@ -897,7 +889,6 @@ Advanced options (experts only):
   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
-  --make=MAKE              use specified make [$make]
   --python=PYTHON          use specified python [$python]
   --ninja=NINJA            use specified ninja [$ninja]
   --smbd=SMBD              use specified smbd [$smbd]
@@ -950,11 +941,6 @@ then
     fi
 fi
 
-if ! has "$make"
-then
-    error_exit "GNU make ($make) not found"
-fi
-
 if ! check_py_version "$python"; then
   error_exit "Cannot use '$python', Python >= 3.7 is required." \
              "Use --python=/path/to/python to specify a supported Python." \
@@ -1777,7 +1763,6 @@ if test "$container" != no; then
     echo "RUNC=$runc" >> $config_host_mak
 fi
 echo "ROMS=$roms" >> $config_host_mak
-echo "MAKE=$make" >> $config_host_mak
 echo "PYTHON=$python" >> $config_host_mak
 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
 echo "MESON=$meson" >> $config_host_mak
@@ -2030,7 +2015,6 @@ preserve_env CXXFLAGS
 preserve_env LD
 preserve_env LDFLAGS
 preserve_env LD_LIBRARY_PATH
-preserve_env MAKE
 preserve_env NM
 preserve_env OBJCFLAGS
 preserve_env OBJCOPY

meson.build

@@ -4028,7 +4028,6 @@ summary(summary_info, bool_yn: true, section: 'Directories')
 # Host binaries
 summary_info = {}
 summary_info += {'git':               config_host['GIT']}
-summary_info += {'make':              config_host['MAKE']}
 summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
 summary_info += {'sphinx-build':      sphinx_build}
 if config_host.has_key('HAVE_GDB_BIN')