Linking

Hi Keith and Eli

Thank you for your help. I will certainly avoid mingwrt-5.3.1, and avoid
libmingwex-2.dll like the plague,
or at least like covid19.

That done I am still unsure about your comment on my link command:

gcc -o x03.exe x03.o C:\plplot32\lib\libcsirocsa.a  C:\plplot32\lib\
libplplot.a C:\plplot32\lib\libqsastime.a  -mconsole -mwindows -lm

It produces:
C:\Pete\PlPXmpl>x03.exe

Plotting Options:
 < 1> wingcc     Win32 GCC device
 < 2> ps         PostScript File (monochrome)
 < 3> psc        PostScript File (color)
 < 4> xfig       Xfig file
 < 5> null       Null device
 < 6> mem        User-supplied memory device
 < 7> svg        Scalable Vector Graphics (SVG 1.1)

Enter device number or keyword: 2
Enter graphics output file name: x03.ps
C:\Pete\PlPXmpl>

and a lovely graphics picture in x03.ps. No error messages. What's not to
like? Would you like to see it?

If I omit the -mwindows part I get, not surprisingly a set of error
messages:


C:\Pete\PlPXmpl>gcc -o x03.exe x03.o C:\plplot32\lib\libcsirocsa.a
 C:\plplot32\lib\libplplot.a C:\plplot32\lib\libqsastime.a  -mconsole -lm
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x316): undefined
reference to `SetBkColor@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x36f): undefined
reference to `ExtTextOutA@32'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x38d): undefined
reference to `SetBkColor@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x405): undefined
reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x493): undefined
reference to `BitBlt@36'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x4b4): undefined
reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x6e3): undefined
reference to `SetBkColor@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x73c): undefined
reference to `ExtTextOutA@32'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x75a): undefined
reference to `SetBkColor@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xc1d): undefined
reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xc3b): undefined
reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xc6f): undefined
reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xc8d): undefined
reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xe5e): undefined
reference to `SetPolyFillMode@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xe7c): undefined
reference to `SetPolyFillMode@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xf5f): undefined
reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xfa1): undefined
reference to `Polyline@12'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xfcf): undefined
reference to `SetPixel@16'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0xff0): undefined
reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1107):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1134):
undefined reference to `Polyline@12'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1155):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x129d):
undefined reference to `CreateSolidBrush@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x12c9):
undefined reference to `CreatePen@12'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x12ed):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1313):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x133e):
undefined reference to `Polygon@12'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x135f):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1373):
undefined reference to `DeleteObject@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x138e):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x139c):
undefined reference to `DeleteObject@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x13e1):
undefined reference to `DeleteDC@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1402):
undefined reference to `DeleteObject@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1416):
undefined reference to `CreateCompatibleDC@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x146d):
undefined reference to `CreateCompatibleBitmap@12'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1499):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1507):
undefined reference to `BitBlt@36'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1528):
undefined reference to `SelectObject@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x17d0):
undefined reference to `DeleteDC@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x181c):
undefined reference to `DeleteObject@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1bd9):
undefined reference to `DeleteObject@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1c18):
undefined reference to `CreatePen@12'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1e82):
undefined reference to `SetROP2@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x1ea0):
undefined reference to `SetROP2@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x222f):
undefined reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x2253):
undefined reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x22f9):
undefined reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x2317):
undefined reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x2351):
undefined reference to `GetDeviceCaps@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x236f): more
undefined references to `GetDeviceCaps@8' follow
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x24b9):
undefined reference to `PrintDlgA@4'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x25be):
undefined reference to `StartDocA@8'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe:
C:\plplot32\lib\libplplot.a(wingcc.c.obj):wingcc.c:(.text+0x25dd):
undefined reference to `EndDoc@4'
collect2.exe: error: ld returned 1 exit status

While if I omit the -mconsole part, I get:

C:\Pete\PlPXmpl>gcc -o x03.exe x03.o C:\plplot32\lib\libcsirocsa.a
 C:\plplot32\lib\libplplot.a C:\plplot32\lib\libqsastime.a -mwindows -lm


C:\Pete\PlPXmpl>x03.exe
C:\Pete\PlPXmpl>

Indeed no contradiction, no error messages but no interaction and NO
graphics.

So in view of your comments I obviously need your help. What would you
suggest I write for my linking command?
The pair of commands -mconsole -mwindows was suggested in a help text when
I first started to use plplot
back in the mists of time. Unfortunately I can't find it now but it seems
to have been working ok for a long time.

Also, perhaps you could give a reference to these Windows  commands
(presumably they are system .dll's) as I cannot
find any specs for them.

Best Wishes, Peter Williams

-- 
Peter Williams
[email protected]

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