[PATCH 2/3] Fix `hashtest' target in Makefile

[Eduardo A . Bustamante López]

- Adds the dependency on the Bash's libmalloc
- Removes the libintl dependency, since it's unused
- Adds the `running_trap' global variable, since libmalloc depends on
  it when the `SHELL' macro is defined (see [1])
- Removes compiler warning due to missing return type in main function

After these changes, the `hashtest' target can be built with:

| dualbus@system76-pc:~/src/gnu/bash$ CC=gcc ./configure --silent 
--with-bash-malloc && make -j$(nproc) -s hashtest
|
| Beginning configuration for bash-5.0-rc1 for x86_64-pc-linux-gnu
|
| config.status: creating po/POTFILES
| config.status: creating po/Makefile
| ./parse.y: warning: 1 shift/reduce conflict [-Wconflicts-sr]
|
|       ***********************************************************
|       *                                                         *
|       * GNU bash, version 5.0.0(1)-rc1 (x86_64-pc-linux-gnu)
|       *                                                         *
|       ***********************************************************
|
| make[1]: warning: -j16 forced in submake: resetting jobserver mode.
|
| dualbus@system76-pc:~/src/gnu/bash$ echo hi | ./hashtest >/dev/null 2>&1; 
echo $?
| 0

It doesn't work if `--without-bash-malloc' is specified.

[1]

/usr/bin/ld: ./lib/malloc/libmalloc.a(malloc.o): in function `morecore':
/home/dualbus/src/gnu/bash/lib/malloc/malloc.c:602: undefined reference to 
`running_trap'
---
 Makefile.in | 4 ++--
 hashlib.c   | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index 5fcb44b0..76a51b19 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -967,8 +967,8 @@ depends: force
        $(Program) $(SUPPORT_SRC)mkdep -c ${CC} -- ${CCFLAGS} ${CSOURCES}
 
 #### PRIVATE TARGETS ####
-hashtest:      hashlib.c
-       $(CC) -DTEST_HASHING $(CCFLAGS) $(TEST_NBUCKETS) -o $@ 
$(srcdir)/hashlib.c xmalloc.o $(INTL_LIB)
+hashtest:      hashlib.c xmalloc.o $(MALLOC_LIBRARY)
+       $(CC) -DTEST_HASHING $(CCFLAGS) $(TEST_NBUCKETS) -o $@ 
$(srcdir)/hashlib.c xmalloc.o $(MALLOC_LIBRARY)
 
 ############################ DEPENDENCIES ###############################
 
diff --git a/hashlib.c b/hashlib.c
index 8adbe221..f8e3b09a 100644
--- a/hashlib.c
+++ b/hashlib.c
@@ -392,6 +392,7 @@ hash_pstats (table, name)
 HASH_TABLE *table, *ntable;
 
 int interrupt_immediately = 0;
+int running_trap = 0;
 
 int
 signal_is_trapped (s)
@@ -417,6 +418,7 @@ internal_warning (const char *format, ...)
 {
 }
 
+int
 main ()
 {
   char string[256];
-- 
2.20.1