Topics  Getting Started  Compiler Reference    About this document Who should read this document How to use this document How this document is organized Conventions and terminology used in this document Typographical conventions How to read syntax diagrams How to read syntax statements Examples Notes on path names Notes on the terminology used Related information IBM XL Fortran documentation Additional documentation Related documentation Standards documents Technical support How to send your comments    Introduction    Overview of XL Fortran features Hardware and operating-system support Language support Migration support Source-code conformance checking Highly configurable compiler Diagnostic listings Symbolic debugger support Program optimization    Setting up and customizing XL Fortran Where to find installation instructions Using the compiler on a network file System Correct settings for environment variables Environment variable basics Environment variables for national language support Setting library search paths PDFDIR: Specifying the directory for PDF profile information TMPDIR: Specifying a directory for temporary files XLFSCRATCH_unit: Specifying names for scratch files XLFUNIT_unit: Specifying names for implicitly connected files Customizing the configuration file Determining which level of XL Fortran is installed Running two levels of XL Fortran    Editing, compiling, linking, and running XL Fortran programs Editing XL Fortran source files Compiling XL Fortran programs Compiling Fortran 90 or Fortran 95 programs Compiling XL Fortran SMP programs Compilation order for Fortran programs Canceling a compilation XL Fortran input files XL Fortran Output files Scope and precedence of option settings Specifying options on the command line Specifying options in the source file Passing command-line options to the "ld" or "as" commands Displaying information inside binary files (strings) Compiling for specific architectures Passing Fortran files through the C preprocessor cpp Directives for XL Fortran programs Passing options to the C preprocessor Avoiding preprocessing problems Linking XL Fortran programs Compiling and linking in separate Steps Passing options to the ld command Dynamic and Static Linking Avoiding naming conflicts during linking Running XL Fortran programs Canceling execution Compiling and executing on different systems Run-time libraries for POSIX pthreads support Selecting the language for run-time messages Setting run-time options Other environment variables that affect run-time behavior XL Fortran run-time exceptions    XL Fortran compiler-option reference Summary of the XL Fortran compiler options Options that control input to the compiler Options that specify the locations of output files Options for performance optimization Options for error checking and debugging Options that control listings and messages Options for compatibility Options for floating-point processing Options that control linking Options that Control Other Compiler Operations Options that are obsolete or not recommended Detailed descriptions of the XL Fortran compiler options -# option -1 option -B option -C option -c option -D option -d option -F option -g option -I option -k option -L option -l option -NS option -O option -o option -p option -Q option -q32 option -q64 option -qalias option -qalign option -qarch option -qassert option -qattr option -qautodbl option -qbigdata option -qcache option -qcclines option -qcheck option -qci option -qcompact option -qcr option -qctyplss option -qdbg option -qddim option -qdirective option -qdirectstorage option -qdlines option -qdpc option -qenablevmx option -qenum option -qescape option -qessl Option -qextern option -qextname option -qfixed option -qflag option -qfloat option -qflttrap option -qfree option -qfullpath option -qhalt option -qhot option -qieee option -qinit option -qinitauto option -qinlglue option -qintlog option -qintsize option -qipa option -qkeepparm option -qlanglvl option -qlibansi option -qlibposix option -qlinedebug option -qlist option -qlistopt option -qlog4 option -qmaxmem option -qmbcs option -qminimaltoc option -qmixed option -qmoddir option -qmodule option -qnoprint option -qnullterm option -qobject option -qoldmod option -qonetrip option -qoptimize option -qpdf option -qphsinfo option -qpic option -qport option -qposition option -qprefetch option -qqcount option -qrealsize option -qrecur option -qreport option -qsaa option -qsave option -qsaveopt option -qsclk option -qshowpdf option -qsigtrap option -qsmallstack option -qsmp option -qsource option -qspillsize option -qstacktemp option -qstrict option -qstrictieeemod option -qstrict_induction option -qsuffix option -qsuppress option -qswapomp option -qtbtable option -qthreaded option -qtune option -qundef option -qunroll option -qunwind option -qversion option -qwarn64 option -qxflag=dvz option -qxflag=oldtab option -qxlf77 option -qxlf90 option -qxlines option -qxref option -qzerosize option -S option -t option -U option -u option -v option -V option -W option -w option -y option    Using XL Fortran in a 64-Bit Environment Compiler options for the 64-Bit environment    Problem determination and debugging Understanding XL Fortran error messages Fixing installation or system environment problems Fixing compile-time problems Duplicating extensions from other systems Isolating problems with individual compilation units Compiling with thread-safe commands Running out of machine resources Fixing link-time problems Fixing run-time problems Duplicating extensions from other systems Mismatched sizes or types for arguments Working around problems when optimizing Input/Output errors Tracebacks and core dumps Debugging a Fortran 90 or Fortran 95 program    Understanding XL Fortran compiler listings Header section Options section Source section Error messages Transformation report section Attribute and cross-reference section Object section File table section Compilation unit epilogue Section Compilation epilogue Section    XL Fortran technical information The compiler phases External Names in XL Fortran Libraries The XL Fortran run-time environment External names in the run-time environment Technical details of the -qfloat=hsflt option Implementation details for -qautodbl promotion and padding    XL Fortran internal limits    Glossary    Index  Language Reference  Optimization and Programming Guide  Installation Guide

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