build: Use bash if available to avoid dash problems.

* configure: Set SHELL to bash.
* configure.sh: Likewise.
* build-aux/test-suite.sh (TEST_LOGS):
* build-aux/export.make: Export SHELL.
* build-aux/config.sh.in (SHELL): New substitute, export.
* build-aux/config.make.in (SHELL): New substitute.
* build-aux/GNUmakefile.in (build, check, install, uninstall): Use
$SHELL to avoid dash problems.
* build-aux/check-mescc.sh: Likewise.
* build-aux/build.sh.in: Likewise.
* build-aux/check-mes.sh: Likewise.
* build-aux/check.sh.in: Likewise.

build-aux/GNUmakefile.in

@@ -92,7 +92,7 @@ all: doc
 doc: build
 
 build:
-	./build.sh
+	$(SHELL) build.sh
 
 src/${program_prefix}mes: build
 
@@ -129,20 +129,20 @@ clean-go:
 	rm -f $(shell find . -name '*.go')
 
 check:
-	./check.sh
+	$(SHELL) check.sh
 
 check-mescc:
-	./pre-inst-env build-aux/check-mescc.sh
+	$(SHELL) pre-inst-env build-aux/check-mescc.sh
 
 # Mes does not feature post-install checks yet, so we're great!
 installcheck:
 	true
 
 install:
-	./install.sh
+	$(SHELL) install.sh
 
 uninstall:
-	./uninstall.sh
+	$(SHELL) uninstall.sh
 
 doc/version.texi: ${srcdest}doc/mes.texi GNUmakefile
 	@mkdir -p $(@D)

build-aux/build.sh.in

@@ -42,10 +42,10 @@ if $courageous; then
     set +e
 fi
 
-sh ${srcdest}build-aux/build-scaffold.sh
+${SHELL} ${srcdest}build-aux/build-scaffold.sh
 
 if test -n "$GUILE" -a "$GUILE" != true; then
-    sh ${srcdest}build-aux/build-guile.sh
+    ${SHELL} ${srcdest}build-aux/build-guile.sh
 fi
 
 debug=
@@ -101,7 +101,7 @@ if test $compiler = gcc; then
 -I ${srcdest}include
 -I ${srcdest}include/$mes_kernel/$mes_cpu
 "
-        sh ${srcdest}build-aux/build-lib.sh
+        ${SHELL} ${srcdest}build-aux/build-lib.sh
         cp crt1.o ..
     )
 fi
@@ -119,7 +119,7 @@ fi
 -I ${srcdest}include
 -I ${srcdest}include/$mes_kernel/$mes_cpu
 "
-    sh ${srcdest}build-aux/build-mes.sh
+    ${SHELL} ${srcdest}build-aux/build-mes.sh
 )
 
 (
@@ -143,5 +143,5 @@ fi
     compiler=mescc
     AR="${srcdest}pre-inst-env ar"
     CC="${srcdest}pre-inst-env mescc -m $mes_bits"
-    sh ${srcdest}build-aux/build-lib.sh
+    ${SHELL} ${srcdest}build-aux/build-lib.sh
 )

build-aux/check-mes.sh

@@ -58,5 +58,5 @@ tests/psyntax.test
 XFAIL_TESTS=
 
 test_ext=.test
-log_compiler=sh
+log_compiler=${SHELL}
 . ${srcdest}build-aux/test-suite.sh

build-aux/check-mescc.sh

@@ -269,5 +269,5 @@ fi
 
 recheck=${recheck-false}
 test_ext=.c
-log_compiler=${srcdest}build-aux/test-c.sh
+log_compiler="${SHELL} ${srcdest}build-aux/test-c.sh"
 . ${srcdest}build-aux/test-suite.sh

build-aux/check.sh.in

@@ -60,15 +60,15 @@ export LDFLAGS
 recheck=${recheck-false}
 export recheck
 
-./pre-inst-env sh ${srcdest}build-aux/check-boot.sh
+./pre-inst-env ${SHELL} ${srcdest}build-aux/check-boot.sh
-./pre-inst-env sh ${srcdest}build-aux/check-mes.sh
+./pre-inst-env ${SHELL} ${srcdest}build-aux/check-mes.sh
 
 if test $compiler = gcc; then
     (
         cd gcc-lib
         srcdest=$srcdir/../
         srcdir=../$srcdir
-        ../pre-inst-env sh ${srcdest}build-aux/check-mescc.sh
+        ../pre-inst-env ${SHELL} ${srcdest}build-aux/check-mescc.sh
     )
 fi
 
@@ -89,5 +89,5 @@ fi
     LIBS=-lc
     AR="${srcdest}pre-inst-env ar"
     CC="${srcdest}pre-inst-env mescc"
-    ../pre-inst-env sh ${srcdest}build-aux/check-mescc.sh
+    ../pre-inst-env ${SHELL} ${srcdest}build-aux/check-mescc.sh
 )

build-aux/config.make.in

@@ -41,6 +41,7 @@ PACKAGE:=@PACKAGE@
 PACKAGE_NAME:=@PACKAGE_NAME@
 PACKAGE_BUGREPORT:=@PACKAGE_BUGREPORT@
 PERL:=@PERL@
+SHELL:=@SHELL@
 TINYCC_PREFIX:=@TINYCC_PREFIX@
 VERSION:=@VERSION@
 V:=@V@

build-aux/config.sh.in

@@ -41,6 +41,7 @@ PACKAGE="@PACKAGE@"
 PACKAGE_NAME="@PACKAGE_NAME@"
 PACKAGE_BUGREPORT="@PACKAGE_BUGREPORT@"
 PERL="@PERL@"
+SHELL="@SHELL@"
 TINYCC_PREFIX="@TINYCC_PREFIX@"
 VERSION="@VERSION@"
 V=${V-"@V@"}
@@ -86,6 +87,7 @@ export PACKAGE_BUGREPORT
 export AR
 export CC
 export DIFF
+export SHELL
 export V
 export colors
 export compiler

build-aux/export.make

@@ -114,6 +114,10 @@ ifdef PERL
 export PERL
 endif
 
+ifdef SHELL
+export SHELL
+endif
+
 ifdef GUILE_LOAD_PATH
 export GUILE_LOAD_PATH
 endif

build-aux/test-suite.sh

@@ -44,7 +44,7 @@ for t in $TESTS; do
             fail=no;;
     esac
     mkdir -p $d
-    sh ${srcdest}build-aux/test-driver\
+    ${SHELL} ${srcdest}build-aux/test-driver\
        --test-name $t \
        --log-file $b.log\
        --trs-file $b.trs\

configure

@@ -598,7 +598,9 @@ See \"Porting GNU Mes\" in the manual, or try --with-courage\n" mes-system)
                                                guile))
                      ("@MES_SEED@" . ,(or mes-seed ""))
                      ("@PERL@" . ,(or (file-name "perl" deps) ""))
-                     ("@SHELL@" . ,(or (file-name "sh" deps) ""))
+                     ("@SHELL@" . ,(or (file-name "bash" deps)
+                                       (file-name "sh" deps)
+                                       "sh"))
 
                      ("@CFLAGS@" . ,(or (getenv "CFLAGS") ""))
                      ("@HEX2FLAGS@" . ,(or (getenv "HEX2FLAGS") ""))

configure.sh

@@ -106,6 +106,8 @@ M1=${M1-$(command -v M1)}
 MES_FOR_BUILD=${MES_FOR_BUILD-$(command -v mes || command -v guile || echo mes)}
 GIT=${GIT-$(command -v git)} || true
 PERL=${PERL-$(command -v perl)} || true
+SHELL=${BASH-$SHELL}
+
 MES_SEED=${MES_SEED-../mes-seed}
 
 if test "$srcdir" = .; then