Better help string for the alternative mallocs and better configuration summary.

configure.ac

@@ -631,7 +631,7 @@ AM_CONDITIONAL([HAVEFFTW],[test -n "$FFTW_LIBS"])
 #  Check for -lprofiler usually part of the gperftools along with tcmalloc.
 have_profiler="no"
 AC_ARG_WITH([profiler],
-   [AS_HELP_STRING([--with-profiler],
+   [AS_HELP_STRING([--with-profiler=PATH],
       [use cpu profiler library or specify the directory with lib @<:@yes/no@:>@]
    )],
    [with_profiler="$withval"],
@@ -663,7 +663,7 @@ have_special_allocator="no"
 #  Check for tcmalloc a fast malloc that is part of the gperftools.
 have_tcmalloc="no"
 AC_ARG_WITH([tcmalloc],
-   [AS_HELP_STRING([--with-tcmalloc],
+   [AS_HELP_STRING([--with-tcmalloc=PATH],
       [use tcmalloc library or specify the directory with lib @<:@yes/no@:>@]
    )],
    [with_tcmalloc="$withval"],
@@ -696,9 +696,9 @@ if test "x$with_tcmalloc" != "xno"; then
    if test "$have_tcmalloc" = "yes"; then
       TCMALLOC_LIBS="$tclibs"
 
-      AC_DEFINE([HAVE_TCMALLOC],1,[The tc-malloc library appears to be present.])
+      AC_DEFINE([HAVE_TCMALLOC],1,[The tcmalloc library appears to be present.])
 
-      have_special_allocator="yes"
+      have_special_allocator="tcmalloc"
 
       # Prevent compilers that replace the calls with built-ins (GNU 99) from doing so.
       case "$ax_cv_c_compiler_vendor" in
@@ -717,7 +717,7 @@ AM_CONDITIONAL([HAVETCMALLOC],[test -n "$TCMALLOC_LIBS"])
 #  Check for jemalloc another fast malloc that is good with contention.
 have_jemalloc="no"
 AC_ARG_WITH([jemalloc],
-   [AS_HELP_STRING([--with-jemalloc],
+   [AS_HELP_STRING([--with-jemalloc=PATH],
       [use jemalloc library or specify the directory with lib @<:@yes/no@:>@]
    )],
    [with_jemalloc="$withval"],
@@ -739,9 +739,9 @@ if test "x$with_jemalloc" != "xno"; then
    if test "$have_jemalloc" = "yes"; then
       JEMALLOC_LIBS="$jelibs"
 
-      AC_DEFINE([HAVE_JEMALLOC],1,[The je-malloc library appears to be present.])
+      AC_DEFINE([HAVE_JEMALLOC],1,[The jemalloc library appears to be present.])
 
-      have_special_allocator="yes"
+      have_special_allocator="jemalloc"
 
       # Prevent compilers that replace the regular calls with built-ins (GNU 99) from doing so.
       case "$ax_cv_c_compiler_vendor" in
@@ -760,7 +760,7 @@ AM_CONDITIONAL([HAVEJEMALLOC],[test -n "$JEMALLOC_LIBS"])
 #  Check for tbbmalloc, Intel's fast and parallel allocator
 have_tbbmalloc="no"
 AC_ARG_WITH([tbbmalloc],
-   [AS_HELP_STRING([--with-tbbmalloc],
+   [AS_HELP_STRING([--with-tbbmalloc=PATH],
       [use tbbmalloc library or specify the directory with lib @<:@yes/no@:>@]
    )],
    [with_tbbmalloc="$withval"],
@@ -782,9 +782,9 @@ if test "x$with_tbbmalloc" != "xno"; then
    if test "$have_tbbmalloc" = "yes"; then
       TBBMALLOC_LIBS="$tbblibs"
 
-      AC_DEFINE([HAVE_TBBMALLOC],1,[The TBB-malloc library appears to be present.])
+      AC_DEFINE([HAVE_TBBMALLOC],1,[The TBBmalloc library appears to be present.])
 
-      have_special_allocator="yes"
+      have_special_allocator="TBBmalloc"
 
       # Prevent compilers that replace the calls with built-ins (GNU 99) from doing so.
       case "$ax_cv_c_compiler_vendor" in
@@ -821,7 +821,8 @@ if test "$with_hdf5" = "yes"; then
 
     if test "$enable_parallel_hdf5" = "yes"; then
         AC_MSG_CHECKING([for HDF5 parallel support])
-# Check if the library is capable, the header should define H5_HAVE_PARALLEL.
+
+	# Check if the library is capable, the header should define H5_HAVE_PARALLEL.
 
         AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
         #include "hdf5.h"
@@ -1288,23 +1289,21 @@ AC_MSG_RESULT([
 
    $PACKAGE_NAME v.$PACKAGE_VERSION
 
-   Compiler         : $CC
-    - vendor        : $ax_cv_c_compiler_vendor
-    - version       : $ax_cv_c_compiler_version
-    - flags         : $CFLAGS
-   MPI enabled      : $enable_mpi
-   HDF5 enabled     : $with_hdf5
-    - parallel      : $have_parallel_hdf5
-   Metis enabled    : $have_metis
-   FFTW3 enabled    : $have_fftw
-   GSL enabled      : $have_gsl
-   libNUMA enabled  : $have_numa
-   GRACKLE enabled  : $have_grackle
-   Using tbbmalloc  : $have_tbbmalloc
-   Using tcmalloc   : $have_tcmalloc
-   Using jemalloc   : $have_jemalloc
-   CPU profiler     : $have_profiler
-   Pthread barriers : $have_pthread_barrier
+   Compiler           : $CC
+    - vendor          : $ax_cv_c_compiler_vendor
+    - version         : $ax_cv_c_compiler_version
+    - flags           : $CFLAGS
+   MPI enabled        : $enable_mpi
+   HDF5 enabled       : $with_hdf5
+    - parallel        : $have_parallel_hdf5
+   Metis enabled      : $have_metis
+   FFTW3 enabled      : $have_fftw
+   GSL enabled        : $have_gsl
+   libNUMA enabled    : $have_numa
+   GRACKLE enabled    : $have_grackle
+   Special allocators : $have_special_allocator
+   CPU profiler       : $have_profiler
+   Pthread barriers   : $have_pthread_barrier
 
    Hydro scheme       : $with_hydro
    Dimensionality     : $with_dimension