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check PnetCDF version at compile time

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This commit is contained in:
Wei-keng Liao 2018-07-27 12:18:37 -05:00
parent 000e7a054d
commit 0a5d93bdaa
1 changed files with 6 additions and 14 deletions
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20
configure.ac
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@ -1102,21 +1102,13 @@ if test "x$enable_pnetcdf" = xyes; then
# Pnetcdf did not support utf-8 until 1.6.0 # Pnetcdf did not support utf-8 until 1.6.0
# Save/restore CFLAGS
SAVELIBS=$LIBS
LIBS="$LIBS -lpnetcdf"
AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <pnetcdf.h>],
[[
int major = PNETCDF_VERSION_MAJOR;
int minor = PNETCDF_VERSION_MINOR;
int version = major*1000 + minor;
int ok = (version >= (1*1000 + 6));
return (ok?0:1);]])],
[pnetcdf16=yes],
[pnetcdf16=no])
CFLAGS="$SAVECFLAGS"
LIBS="$SAVELIBS"
AC_MSG_CHECKING([Is libpnetcdf version 1.6.0 or later?]) AC_MSG_CHECKING([Is libpnetcdf version 1.6.0 or later?])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
#include <pnetcdf.h>
#if (PNETCDF_VERSION_MAJOR*1000 + PNETCDF_VERSION_MINOR < 1006)
choke me
#endif
]])], [pnetcdf16=yes], [pnetcdf16=no])
AC_MSG_RESULT([$pnetcdf16]) AC_MSG_RESULT([$pnetcdf16])
if test x$pnetcdf16 = xno; then if test x$pnetcdf16 = xno; then
AC_MSG_ERROR([--enable-pnetcdf requires version 1.6.0 or later]) AC_MSG_ERROR([--enable-pnetcdf requires version 1.6.0 or later])