# -*- shell-script -*- # # This file is part of the HDF5 build script. It is processed shortly # after configure starts and defines, among other things, flags for # the various compile modes. #---------------------------------------------------------------------------- # Compiler flags. The CPPFLAGS values should not include package debug # flags like `-DH5G_DEBUG' since these are added with the # `--enable-debug' switch of configure. #---------------------------------------------------------------------------- # Choosing a C Compiler # --------------------- # # Configre will use the value of environment variable `CC' if it is # set. If not then configure checks for a working GNU `gcc' followed # by other common compiler names. If a default compiler is desired # then uncomment the following line, replacing `gcc' with the name of # the default compiler. #CC=${CC:-gcc} # C Compiler and Preprocessor Flags # --------------------------------- # # Flags that end with `_CFLAGS' are always passed to the compiler. # Flags that end with `_CPPFLAGS' are passed to the compiler when # compiling but not when linking. # # DEBUG_CFLAGS Flags to pass to the compiler to create a # DEBUG_CPPFLAGS library suitable for use with debugging # tools. Usually this list will exclude # optimization switches (like `-O') and include # switches that turn on symbolic debugging # support (like `-g'). # # PROD_CFLAGS Flags to pass to the compiler to create a # PROD_CPPFLAGS production version of the library. These # usualy exclude symbolic debugging switches # (like `-g') and include optimization switches # (like `-O'). # # PROFILE_CFLAGS Flags to pass to the compiler to create a # PROFILE_CPPFLAGS library suitable for performance testing (like # `-pg'). This may or may not include debugging # or production flags. # # CFLAGS Flags can be added to this variable which # might already be partially initialized. These # flags will always be passed to the compiler # and should include switches to turn on full # warnings. HDF5 attempts to be ANSI and Posix # compliant and employ good programming # practices resulting in few if any # warnings. # # Note: Warning flags do not have to be added to CFLAGS # variable if the compiler is the GNU gcc # compiler or a descendent of gcc. # # Note: The CFLAGS should contains *something* or else # configure will probably add `-g'. For most # systems this isn't a problem but some systems # will disable optimizations in favor of the # `-g'. # # case "$CC" in *gcc*) CFLAGS="$CFLAGS -Wsign-compare" #Only works for some versions DEBUG_CFLAGS="-g -fverbose-asm" DEBUG_CPPFLAGS="-DH5F_OPT_SEEK=0 -DH5F_LOW_DFLT=H5F_LOW_SEC2" PROD_CFLAGS="-mcpu=pentiumpro -march=pentiumpro -O3 -finline-functions -malign-double -fomit-frame-pointer -fschedule-insns2" PROD_CPPFLAGS= PROFILE_CFLAGS="-pg" PROFILE_CPPFLAGS= ;; *) CFLAGS="$CFLAGS -ansi" DEBUG_FLAGS="-g" DEBUG_CPPFLAGS="-DH5F_OPT_SEEK=0 -DH5F_LOW_DFLT=H5F_LOW_SEC2" PROD_CFLAGS="-O" PROD_CPPFLAGS= PROFILE_CFLAGS="-pg" PROFILE_CPPFLAGS= ;; esac # Overriding Configure Tests # -------------------------- # # Values for overriding configuration tests when cross compiling. # This includes compiling on some machines where the serial front end # compiles for a parallel back end. # Set this to `yes' or `no' depending on whether the target is big # endian or little endian. #ac_cv_c_bigendian=${ac_cv_c_bigendian='yes'} # Set this to the width required by printf() to print type `long # long'. For instance, if the format would be `%lld' then set it to # `ll' or if the format would be `%qd' set it to `q'. #hdf5_cv_printf_ll=${hdf5_cv_printf_ll='ll'}