Package: fp-units-math
Version: 2.6.0
Hi,
I have just installed this package with : apt-get install fp-units-math
But I get a linkage error when I try to compile an example of this package :
09:38:44:tru@dk-99/~/data/tru/Pascal:$ fpc test_gmp.pas
Free Pascal Compiler version 2.6.0-9 [2013/04/14] for x86_64
Copyright (c) 1993-2011 by Florian Klaempfl and others
Target OS: Linux for x86-64
Compiling test_gmp.pas
Linking test_gmp
/usr/bin/ld: warning: link.res contains output sections; did you forget -T?
/usr/bin/ld: cannot find -lgmp
Error: Error while linking
Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted
Error: /usr/bin/ppcx64 returned an error exitcode (normal if you did not
specify a source file to be compiled)
10:04:08:tru@dk-99/~/data/tru/Pascal:$
I try to compile with include option :
fpc -Fl/usr/lib/fpc/2.6.0/units/x86_64-linux/gmp test_gmp.pas
and :
fpc -Fo"/usr/lib/fpc/2.6.0/units/x86_64-linux/gmp/gmp.o" test_gmp.pas
but with the same results Owever I have libgmp :
10:38:56:root@dk-99:/usr/lib/fpc/2.6.0/units/x86_64-linux/gmp# locate libgmp
/usr/lib/x86_64-linux-gnu/libgmp.so.10
/usr/lib/x86_64-linux-gnu/libgmp.so.10.0.5
/usr/lib/x86_64-linux-gnu/openssl-1.0.0/engines/libgmp.so
/usr/share/doc/libgmp10
/usr/share/doc/libgmp10/README.Debian
/usr/share/doc/libgmp10/TODO.Debian
/usr/share/doc/libgmp10/changelog.Debian.gz
/usr/share/doc/libgmp10/copyright
/var/cache/apt/archives/libgmp10_2%3a5.0.5+dfsg-2_amd64.deb
/var/lib/dpkg/info/libgmp10:amd64.list
/var/lib/dpkg/info/libgmp10:amd64.md5sums
/var/lib/dpkg/info/libgmp10:amd64.postinst
/var/lib/dpkg/info/libgmp10:amd64.postrm
/var/lib/dpkg/info/libgmp10:amd64.shlibs
Here the file found in the package under
/usr/share/doc/fp-units-math/2.6.0/examples/gmp:
program test_pas;
{$mode objfpc}{$H+}
uses
sysutils, math, gmp;
const
N = 2;
NBITS = 100;
var
f: mpfloat;
bits, digits: integer;
begin
f_set_default_prec(NBITS);
bits := f_get_default_prec;
digits := floor(bits * LOG_10_2);
f := f_sqrt_ui(N);
writeln(format('Sqrt(%d) to %d digits (%d bits) = %s', [N, digits, bits,
string(f)]));
f := f ** 2;
writeln(format('Squared back = %s', [string(f)]));
f -= N;
writeln(format('Minus %d = %s', [N, string(f)]));
end.
My fpc.cfg is enclosed with this mail.
The units is present in /usr/lib/fpc/2.6.0/units/x86_64-linux/gmp :
10:02:14:tru@dk-99:/home/tru# ls -l /usr/lib/fpc/2.6.0/units/x86_64-linux/gmp
total 1224
-rw-r--r-- 1 root root 126524 avril 14 2013 gmp.o
-rw-r--r-- 1 root root 394683 avril 14 2013 gmp.ppu
-rw-r--r-- 1 root root 721896 avril 14 2013 libpgmp.a
-rw-r--r-- 1 root root 87 avril 14 2013 Package.fpc
10:12:08:tru@dk-99:/home/tru#
The linker "cannot find the path for lgmp" yet I try the option -Fl and I
uncomment
# searchpath for libraries
-Fl/usr/lib/fpc/$fpcversion/lib
in fpc.cfg.
So I don't understand where is the problem.
Best Regards,
Michael
#
# Config file generated by fpcmkcfg on 12-5-14 - 01:09:37
# Example fpc.cfg for Free Pascal Compiler
#
# ----------------------
# Defines (preprocessor)
# ----------------------
#
# nested #IFNDEF, #IFDEF, #ENDIF, #ELSE, #DEFINE, #UNDEF are allowed
#
# -d is the same as #DEFINE
# -u is the same as #UNDEF
#
#
# Some examples (for switches see below, and the -? helppages)
#
# Try compiling with the -dRELEASE or -dDEBUG on the commandline
#
# For a release compile with optimizes and strip debuginfo
#IFDEF RELEASE
-O2
-Xs
#WRITE Compiling Release Version
#ENDIF
# For a debug version compile with debuginfo and all codegeneration checks on
#IFDEF DEBUG
-gl
-Crtoi
#WRITE Compiling Debug Version
#ENDIF
# assembling
#ifdef darwin
# use pipes instead of temporary files for assembling
-ap
#endif
# ----------------
# Parsing switches
# ----------------
# Pascal language mode
# -Mfpc free pascal dialect (default)
# -Mobjfpc switch some Delphi 2 extensions on
# -Mdelphi tries to be Delphi compatible
# -Mtp tries to be TP/BP 7.0 compatible
# -Mgpc tries to be gpc compatible
# -Mmacpas tries to be compatible to the macintosh pascal dialects
#
# Turn on Object Pascal extensions by default
#-Mobjfpc
# Assembler reader mode
# -Rdefault use default assembler
# -Ratt read AT&T style assembler
# -Rintel read Intel style assembler
#
# All assembler blocks are AT&T styled by default
#-Ratt
# Semantic checking
# -S2 same as -Mobjfpc
# -Sc supports operators like C (*=,+=,/= and -=)
# -Sa include assertion code.
# -Sd same as -Mdelphi
# -Se<x> error options. <x> is a combination of the following:
# <n> : compiler stops after <n> errors (default is 1)
# w : compiler stops also after warnings
# n : compiler stops also after notes
# h : compiler stops also after hints
# -Sg allow LABEL and GOTO
# -Sh Use ansistrings
# -Si support C++ styled INLINE
# -Sk load fpcylix unit
# -SI<x> set interface style to <x>
# -SIcom COM compatible interface (default)
# -SIcorba CORBA compatible interface
# -Sm support macros like C (global)
# -So same as -Mtp
# -Sp same as -Mgpc
# -Ss constructor name must be init (destructor must be done)
# -Sx enable exception keywords (default in Delphi/ObjFPC modes)
#
# Allow goto, inline, C-operators, C-vars
-Sgic
# ---------------
# Code generation
# ---------------
# Uncomment the next line if you always want static/dynamic units by default
# (can be overruled with -CD, -CS at the commandline)
#-CS
#-CD
# Set the default heapsize to 8Mb
#-Ch8000000
# Set default codegeneration checks (iocheck, overflow, range, stack)
#-Ci
#-Co
#-Cr
#-Ct
# Optimizer switches
# -Os generate smaller code
# -Oa=N set alignment to N
# -O1 level 1 optimizations (quick optimizations, debuggable)
# -O2 level 2 optimizations (-O1 + optimizations which make debugging
more difficult)
# -O3 level 3 optimizations (-O2 + optimizations which also may make the
program slower rather than faster)
# -Oo<x> switch on optimalization x. See fpc -i for possible values
# -OoNO<x> switch off optimalization x. See fpc -i for possible values
# -Op<x> set target cpu for optimizing, see fpc -i for possible values
#ifdef darwin
#ifdef cpui386
-Cppentiumm
-Oppentiumm
#endif
#endif
# -----------------------
# Set Filenames and Paths
# -----------------------
# Both slashes and backslashes are allowed in paths
# path to the messagefile, not necessary anymore but can be used to override
# the default language
#-Fr/usr/lib/fpc/$fpcversion/msg/errore.msg
#-Fr/usr/lib/fpc/$fpcversion/msg/errorn.msg
#-Fr/usr/lib/fpc/$fpcversion/msg/errores.msg
#-Fr/usr/lib/fpc/$fpcversion/msg/errord.msg
#-Fr/usr/lib/fpc/$fpcversion/msg/errorr.msg
# searchpath for units and other system dependent things
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/*
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/rtl
#IFDEF FPCAPACHE_1_3
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/httpd13/
#ELSE
#IFDEF FPCAPACHE_2_0
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/httpd20
#ELSE
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/httpd22
#ENDIF
#ENDIF
# searchpath for fppkg user-specific packages
-Fu~/.fppkg/lib/fpc/$fpcversion/units/$FPCTARGET/*
# path to the gcclib
#ifdef cpui386
-Fl/usr/lib/gcc/x86_64-linux-gnu/4.7
#endif
#ifdef cpux86_64
-Fl/usr/lib/gcc/x86_64-linux-gnu/4.7
#endif
# searchpath for libraries
-Fl/usr/lib/fpc/$fpcversion/lib
#-Fl/lib;/usr/lib
# searchpath for tools
-FD/usr/lib/fpc/$fpcversion/bin/$FPCTARGET
#IFNDEF CPUI386
#IFNDEF CPUAMD64
#DEFINE NEEDCROSSBINUTILS
#ENDIF
#ENDIF
#IFNDEF Linux
#DEFINE NEEDCROSSBINUTILS
#ENDIF
# binutils prefix for cross compiling
#IFDEF FPC_CROSSCOMPILING
#IFDEF NEEDCROSSBINUTILS
-XP$FPCTARGET-
#ENDIF
#ENDIF
# -------------
# Linking
# -------------
# generate always debugging information for GDB (slows down the compiling
# process)
# -gc generate checks for pointers
# -gd use dbx
# -gg use gsym
# -gh use heap trace unit (for memory leak debugging)
# -gl use line info unit to show more info for backtraces
# -gv generates programs tracable with valgrind
# -gw generate dwarf debugging info
#
# Enable debuginfo and use the line info unit by default
#-gl
# always pass an option to the linker
#-k-s
# Always strip debuginfo from the executable
-Xs
# -------------
# Miscellaneous
# -------------
# Write always a nice FPC logo ;)
-l
# Verbosity
# e : Show errors (default) d : Show debug info
# w : Show warnings u : Show unit info
# n : Show notes t : Show tried/used files
# h : Show hints s : Show time stamps
# i : Show general info q : Show message numbers
# l : Show linenumbers c : Show conditionals
# a : Show everything 0 : Show nothing (except errors)
# b : Write file names messages r : Rhide/GCC compatibility mode
# with full path x : Executable info (Win32 only)
# v : write fpcdebug.txt with p : Write tree.log with parse tree
# lots of debugging info
#
# Display Info, Warnings and Notes
-viwn
# If you don't want so much verbosity use
#-vw
# multiarch library search path
-Fl/usr/lib/$fpctarget-*
