diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 81 |
1 files changed, 42 insertions, 39 deletions
diff --git a/configure.ac b/configure.ac index cd5a42a..e5f67d4 100644 --- a/configure.ac +++ b/configure.ac @@ -237,6 +237,41 @@ elif test $hdf5_cv_host != $host; then fi ## ---------------------------------------------------------------------- +## Check if we should consider certain compiler warnings as errors +## +## We have to set WARNINGS_AS_ERRORS before sourcing a $host_config +## file, below. +## +## These should NOT be on by default as the risk of breakage is high +## when compiling HDF5 on new (or new versions) of platforms and +## compilers. It can also cause failures when header files we have no +## control over (e.g. MPI, HDFS) raise warnings. +## +AC_MSG_CHECKING([enable warnings as errors]) +AC_ARG_ENABLE([warnings-as-errors], + [AS_HELP_STRING([--enable-warnings-as-errors], + [Determines whether certain warnings will be + considered errors. This is mainly for use + by HDF5 library developers. + [default=no] + ])], + [WARNINGS_AS_ERRORS=$enableval]) + +## Set default +if test "X-$WARNINGS_AS_ERRORS" = X- ; then + WARNINGS_AS_ERRORS=no +fi + +case "X-$WARNINGS_AS_ERRORS" in + X-yes|X-no) + AC_MSG_RESULT([$WARNINGS_AS_ERRORS]) + ;; + *) + AC_MSG_ERROR([Unrecognized value: $WARNINGS_AS_ERRORS]) + ;; +esac + +## ---------------------------------------------------------------------- ## Source any special files that we need. These files normally aren't ## present but can be used by the maintainers to fine tune things like ## turning on debug or profiling flags for the compiler. The search order @@ -2233,6 +2268,13 @@ case "X-$ASSERTS" in ;; esac +## Incorporate the potentially warning-to-error promoting flags after +## feature tests. Some of the tests (e.g., `off_t`) generate compilation +## errors with the flags we chose for the HDF5 library and tools. +## +H5_CFLAGS="$H5_CFLAGS $H5_ECFLAGS" +H5_CXXFLAGS="$H5_CXXFLAGS $H5_ECXXFLAGS" + ## ---------------------------------------------------------------------- ## Check if developer warnings should be turned on ## These are warnings that provide suggestions like gcc's -Wsuggest-attribute. @@ -2272,45 +2314,6 @@ case "X-$DEV_WARNINGS" in esac ## ---------------------------------------------------------------------- -## Check if we should consider certain compiler warnings as errors -## -## These should NOT be on by default as the risk of breakage is high -## when compiling HDF5 on new (or new versions) of platforms and -## compilers. It can also cause failures when header files we have no -## control over (e.g. MPI, HDFS) raise warnings. -## -AC_MSG_CHECKING([enable warnings as errors]) -AC_ARG_ENABLE([warnings-as-errors], - [AS_HELP_STRING([--enable-warnings-as-errors], - [Determines whether certain warnings will be - considered errors. This is mainly for use - by HDF5 library developers. - [default=no] - ])], - [WARNINGS_AS_ERRORS=$enableval]) - -## Set default -if test "X-$WARNINGS_AS_ERRORS" = X- ; then - WARNINGS_AS_ERRORS=no -fi - -case "X-$WARNINGS_AS_ERRORS" in - X-yes) - H5_CFLAGS="$H5_CFLAGS $H5_ECFLAGS" - H5_CXXFLAGS="$H5_CXXFLAGS $H5_ECXXFLAGS" - AC_MSG_RESULT([yes]) - ;; - X-no) - H5_CFLAGS="$H5_CFLAGS $H5_NECFLAGS" - H5_CXXFLAGS="$H5_CXXFLAGS $H5_NECXXFLAGS" - AC_MSG_RESULT([no]) - ;; - *) - AC_MSG_ERROR([Unrecognized value: $WARNINGS_AS_ERRORS]) - ;; -esac - -## ---------------------------------------------------------------------- ## Check if the compiler should use profiling flags/settings ## AC_MSG_CHECKING([profiling]) |