Gpc August 2000

gpc@gnu.de

28 participants
32 discussions

Re: sets bug report
by Couperin 09 Aug '00

09 Aug '00

I wrote : ... > Here is the full message of the compiler : ... > Please submit a full bug report. > See <URL:http://www.gnu.org/software/gcc/faq.html#bugreport> for > instructions. ... Is it a GPC bug or a GCC bug ? Do I really have to report it at {HYPERLINK "mailto:gcc-bugs@gcc.gnu.org"}gcc-bugs(a)gcc.gnu.org ? -- "Couperin"

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Graphical resolution with GPC
by Klaus Friis Østergaard 08 Aug '00

08 Aug '00

Hi Everyone at GPC/GRX I need to convert a program written in turbo pascal version 7.0 which uses a resolution of 1024x768 pixels. When I look at the GRX packed it seems like the high resolution is 640x400 standard svga is this right? I need to use a mouse to control something in the program. Would it be possible to convert this program/ make a new program that uses GPC, with grx and a graphical interface at 1024x768 or maybe 1280x1024, I only need 16 colours? I have the newest gpc-alpha version compiled on a red-hat linux and also a cygwin working on Windows, the primary end platform for the program should be Windows (unfortunately). If it is possible to get a resolution of 1024X768 or greater it would be great if there was a sample code on how to initialise/invoke the graphics rather than a YES this can be done. Thanks Klaus F. Ãstergaard farremosen(a)mail.tele.dk

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From C to GNU-Pascal
by Eike Lange 08 Aug '00

08 Aug '00

Hi! I have a structure called MYSQL_ROW, which I want to port to Pascal (Access to Mysql). In the C-Header, MYSQL_ROW is defined like this: typedef char**MYSQL_ROW; In Pascal, I have defined MYSQLROW like: type MYSQLROW = ^CString; Is this OK? How do I access the follwowing: Var row : MYSQLROW; C PASCAL row[0] row^ row[1] ?? row[2] ?? row[3] ?? In C, it is possible to give an enumeration some predefined values like: enum my_type { first, second, third=44}; How do I do that in Pascal? type MyType = ( first; second; third); Thanks, Eike Lange

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[Bug] GPC_EXEC_PREFIX doesn't take precedence
by J. David Bryan 08 Aug '00

08 Aug '00

This report is for gpc-20000805. The "Invoking GPC" section of the GPC manual states: "In addition, GPC recognizes GPC_EXEC_PREFIX with the same meaning that GCC_EXEC_PREFIX has to GCC. GPC also recognizes GCC_EXEC_PREFIX, but GPC_EXEC_PREFIX takes precedence." Actually, GCC_EXEC_PREFIX takes precedence. Lines 2919-2922 of "gpc.c" are: gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX"); #ifdef GPC if (! gcc_exec_prefix) gcc_exec_prefix = getenv ("GPC_EXEC_PREFIX"); #endif Note that GPC_EXEC_PREFIX is not used if GCC_EXEC_PREFIX is defined. One possible fix to this code would be: #ifdef GPC gcc_exec_prefix = getenv ("GPC_EXEC_PREFIX"); if (! gcc_exec_prefix) #endif gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX"); (The behavior stated in the manual is the desired one. When running GPC, the GPC-specific environment variable should take precedence over any existing GCC-specific variable.) -- Dave

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at last!
by Robert P. Ewing 04 Aug '00

04 Aug '00

Hello, all. Maurice wrote (paraphrased): ... but first I have to copy grx20.pas to the $DJDIR$ directory, or I need to add the option --unit-path=grx232/pascal to enable gpc to locate this file. That was the key! The programs compile fine now. I had also written about the new data types. I like the clean, systematic shortCard, medCard (sounds like what a doctor carries), and so on. I'll note that the web page http://agnes.dida.physik.uni-essen.de/~gnu-pascal/gpc_73.html#SEC73 (7.2, data types) doesn't have a link to a page on reals, so I had to guess. But fortunately the reals seems to be systematic and similar to the integers. Many thanks to all the comments and help I've received over the last week! No on to some actual programming! Toby

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Re: help w/DOS gnupascal install
by Nicola Girardi 04 Aug '00

04 Aug '00

> I need newbie step by step help installing gnu Pascal for DOS. I have seen > the docs. on the gnu Pascal site but have not been able to glean from the > site exactly what files I need. > > 1. what files should I download for a minimum working DJGPP DOS install? http://www.delorie.com/ Choose DJGPP and then Zip-Picker; you just have to fill in a form :)

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Linking Fortran (Lapack)
by Mike Reid 04 Aug '00

04 Aug '00

Dear gpc list, I have tried searching through the archives and my conclusion is that I will have difficulty linking Fortran into my pascal programs on Linux/Intel. However, any clues would be most welcome. This is my situation: I am using the current linux gpc rpms on intel systems (RedHat 6.1) as well as using it on an Alpha. The main thing I'm needing to do with my (rather old) pascal programs involves matrix diagonalization, which is blindingly fast on Alpha with the optimized BLAS and Lapack. On the Alpha (running True64 Unix, i.e. Digital (AKA Compaq :-()) I can link the Fortran routines just fine. However, on intel I can't link the gnu fortran libraries successfully, presumably because gpc is based on one version of gcc and our current g77 is based on another. I don't particularly care about efficiency (the Alpha code is 10x faster due to the optimized matrix libraries) but it would be very useful to be able to develop and check the programs on my Linux boxes. So any clues as to how to just make it run would be very much appreciated. Since the primary platform is the Alpha Lapack/BLAS the obvious alternative of using the C version of Lapack is not really a solution. -- Dr. Michael F. Reid, M.Reid(a)phys.canterbury.ac.nz Physics and Astronomy, University of Canterbury Christchurch, New Zealand. Phone: + 64 3 364 2548 Fax: + 64 3 364 2469

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help w/DOS gnupascal install
by leegold 04 Aug '00

04 Aug '00

I need newbie step by step help installing gnu Pascal for DOS. I have seen the docs. on the gnu Pascal site but have not been able to glean from the site exactly what files I need. 1. what files should I download for a minimum working DJGPP DOS install? Thanks - after this I'll post w/questions about the install procedure -step by step, but let me get the files download first.

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Newbie question
by Michael Worsley 03 Aug '00

03 Aug '00

Hi all, Apologies for the newbie question but... I'm having problems installing and compiling GPC under Cygwin32 I've got a nice clean cygwin installation, downloaded the gcc-2.95.2 source and the gpc source and, after several trials and tribulations relating to include paths, patch files and so on, make gets as far as: cd p/rts && \ CC="`echo /usr/local/src/build/gcc/xgcc -B/usr/local/src/build/gcc/ -B/usr/local/i686-pc-cygwin32/bin/ -I/usr/local/i686-pc-c ygwin32/include' ' | sed -e 's,-B$[^/][^:]$,-B../../\1,g;s,^$[^/][^:]$,../../\1,'`" PC="`echo ./xgpc -B./' ' | sed -e 's, -B$[^/][^:]$,-B../../\1,g;s,^$[^/][^:]$,../../\1,'`" CONFIG_SITE=nonexisting-file \ $src/p/rts/configure --silent > /dev/null --srcdir=$src/p/rts \ `if [ x@with_shared@ = xyes ]; then echo '--with-shared'; fi` configure: error: installation or configuration problem: C compiler cannot create executables. make[1]: *** [p/rts/Makefile] Error 1 make[1]: Leaving directory `/usr/local/src/build/gcc' make: *** [all-gcc] Error 2 Any suggestions as to why GCC appears to be fritzed? Is it Cygwin's gcc that is at fault here, or somethig generated while making gpc? Any help would be appreciated. -- Michael Worsley Praxis Critical Systems Ltd. ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. **********************************************************************

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still trying to compile
by Robert P. Ewing 01 Aug '00

01 Aug '00

Hello, all I am still having trouble with the RHIDE and gpc setup. I have fixed my problems with environment space, so the path is now fine. But I am not getting programs with grx20 to compile. Here is some output, with commentary: When I compile from bash, at the command line, in the $DJDIR$ directory, I write: gpc --automake -v -o taste.exe contrib/grx232/pascal/taste.p -lgrx20 2> outfile Outfile then contains: Reading specs from c:/djgpp/lib/gcc-lib/djgpp/2.952/specs gpc version 20000725, based on 2.95.2 19991024 (release) c:/djgpp/lib/gcc-lib/djgpp/2.952/gpcpp.exe -lang-pascal -v -famtmpfile=c:/djgpp/tmp/RHcaaaaa\ccaqs0wh -fautomake -fdelphi-comments -D__GNU_PASCAL__ -undef -D__GNUC__=2 -D__GNUC_MINOR__=95 -D__GPC__=2 -D__GPC_MINOR__=0 -D__GPC_RELEASE__=20000725 -D__BITS_LITTLE_ENDIAN__=1 -D__BYTES_LITTLE_ENDIAN__=1 -D__WORDS_LITTLE_ENDIAN__=1 -Dunix -Di386 -DGO32 -DDJGPP=2 -DMSDOS -D__OS_DOS__=1 -D__unix__ -D__i386__ -D__GO32__ -D__DJGPP__=2 -D__MSDOS__ -D__OS_DOS__=1 -D__unix -D__i386 -D__GO32 -D__DJGPP=2 -D__MSDOS -Asystem(unix) -Asystem(msdos) -Acpu(i386) -Amachine(i386) -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -D__tune_pentium__ -imacros c:/djgpp/lib/../include/sys/version.h -remap contrib/grx232/pascal/taste.pas c:/djgpp/tmp/RHcaaaaa\ccbqs0wh.i GNU Pascal Compiler PreProcessor version 2.95.2 19991024 (release) (80386, BSD syntax) #include "..." search starts here: #include <...> search starts here: c:/djgpp/LANG/PASCAL [**] c:/djgpp/include c:/djgpp/contrib/grx232/include /usr/local/include [**] JDIR/i586-pc-msdosdjgpp/include [**] $DJDIR/lib/gcc-lib/djgpp/2.952/include $DJDIR/include [*@] End of search list. c:/djgpp/lib/gcc-lib/djgpp/2.952/gpc1.exe c:/djgpp/tmp/RHcaaaaa\ccbqs0wh.i -quiet -dumpbase taste.pas -version -famtmpfile=c:/djgpp/tmp/RHcaaaaa\ccaqs0wh -fautomake -o c:/djgpp/tmp/RHcaaaaa\ccbqs0wh.s GNU Pascal version 2.95.2 19991024 (release) (djgpp) compiled by GNU C version 2.95.2 19991024 (release). c:/djgpp/bin/as.exe -o c:/djgpp/tmp/RHcaaaaa\ccbqs0wh1.o c:/djgpp/tmp/RHcaaaaa\ccbqs0wh.s c:/djgpp/lib/gcc-lib/djgpp/2.952/collect2.exe -o taste.exe c:/djgpp/lib/crt0.o -Lc:/djgpp/lib -Lc:/djgpp/contrib/grx232/lib/dj2 -Lc:/djgpp/lib/gcc-lib/djgpp/2.952 -Lc:/djgpp/bin -Lc:/djgpp/lib c:/djgpp/tmp/RHcaaaaa\ccbqs0wh1.o -lgrx20 -lgpc -lm -lgcc -lc -lgcc -Tdjgpp.djl c:/djgpp/tmp/RHcaaaaa\ccbqs0wh1.o(.text+0x9cb):taste.pas: undefined reference to `init_Grx20' collect2: ld returned 1 exit status Some comments on this: Why am I still getting an "undefined reference to init_Grx20, when I am linking in libgrx20.a? What more can I do about it? How can I remove the directories flagged with [**] above from the include list, seeing as they don't exist? How can I remove a duplicate directory (marked [*2] above)? Output from within RHIDE is essentially identical, with a few slightly different compiler options. The same result and error, though. On a more positive note, I have succeeded in compiling grx20.pas, so now I have a $DJDIR$/bin/grx20.o file. Finally, I've started playing with some of my .pas files from an older version of gpc. Several contain the following, because I need to be particular about data types (in one program, I need a roughly 128MB 3D array of byte, so I can't afford to use 2-byte integers instead!): Type shortint = __byte__ integer; byte = __unsigned__ shortint; int16 = __short__ integer; word = __unsigned__ int16; UI = __unsigned__ integer; {32-bit unsigned integer for MT} LI = __long__ integer; {64-bit integer for statistics} Quad = __long__ real; The compiler complains about this: identifiers should not start with an underscore, should not end with an underscore, and should not have two consecutive underscores in them. But this is what I've done ever since I started using gpc, and it is what the example programs did! Has the syntas changed? Also, why is "real" no longer accepted as a type? thanks in advance, Toby

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Gpc August 2000