Best Way To Fix A Bug Preventing Mixed C / FORTRAN Code From Compiling

November 24, 2021 By Sean Fry Off

Table of Contents

Hopefully if you encounter an error preventing mixed c / fortran code from compiling on your PC, we hope this article can help you fix it.

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I’ve always tried to install a MPI version similar to Amber 16 using AmberTools17
Ubuntu 12.04.5LTS. I have the following error message. Can someone activate me please?

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Getting styles from a Gnu compiler package, for example:
gcc C -v
version is valid 4.8.1
Fortran version is 4.6.4.

Check what the gcc compiler does:
gcc -fPIC -DSYSV -D_FILE_OFFSET_BITS = 64 -D_LARGEFILE_SOURCE Testp
Testp -o.c
Good

Test your normal C / Fortran compilation:
gcc -fPIC -DSYSV -D_FILE_OFFSET_BITS = 64 -D_LARGEFILE_SOURCE -c -o
testp.c.o testp.c
gfortran -fPIC -O0 -c Testp -o.f.o testp.f
gcc -fPIC -DSYSV -D_FILE_OFFSET_BITS = 64 -D_LARGEFILE_SOURCE -o testp
testp.c.o testp.f.o -lgfortran -w
/ usr / bin / ld: may -lgfortran. not found
Collect2: error ld: 1 exit status returned
./configure2: 2502: ./configure2: ./testp: not found
Error: Unable to compile mixed C / Fortran code.
Please check your compiler settings and flags.
The setup failed due to the errors mentioned above!

Many thanks,
Suma
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AMBER Mailing List
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received Dec 28, 2017 04:00:02 AM PST

Sometimes the command is simple, sometimes you don’t know where the error came from.

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I tried to install it under several circumstances, but it failed. I installed AMBERTOOLS12 but only wanted the last option. When I got ./configure -macAccelerate -noX11 I gnu I got the error “Failed to compile mixed C / Fortran code. â € œ. I searched a lot on Google but the solution was not clear.

On Mac, PORT is a good solution if the software is installed correctly. Established on occasion. According to the instructions below (http://jswails.wikidot.com/mac-os-x) gcc and mp-gcc were required. When I checked my gcc I got the following output. This meant that I had not enabled mp-gcc. And then I remove the gcc entry previously started by mv with sudo / opt / local / etc / select / gcc / current / opt / local / etc / select / gcc / current_saved and then select the port – install gcc mp-gcc48. (Quoted from http://stackoverflow.com/questions/19909844/selecting-mp-gcc47-for-gcc-failed) The zu./configure manual worked fine then.

##############################

uaf39965: ~ UofA $ port forwarding – gcc list

Available versfor gcc:

mp-gcc44

mp-gcc46

mp-gcc47

mp-gcc48

no (active)

##############################

Sometimes the rate is basic, you don’t know where the error often comes from.

I tried to select it several times, but it failed. I installed AMBERTOOLS12 but really wanted the latest version. When I gnu ./configure -macAccelerate -noX11, I get the error “Unable to compile other C / Fortran code. â € œ. I searched a lot but the solution was still not clear.

On a Mac, porting is a good solution to properly set up your laptop or computer. I installed it. According to the instructions here (http://jswails.wikidot.com/mac-os-x) gcc also required mp-gcc. When I checked the gcc organization I had the following impact. This meant that I didn’t have a rhythmic mp-gcc. Then I remove all previously enabled gcc mv entries from sudo / opt / local / etc / select / gcc / current / opt / local / etc / select / gcc / current_saved, then take port – set gcc mp-gcc48. (Quoted from http://stackoverflow.com/questions/19909844/selecting-mp-gcc47-for-gcc-failed) Then the to./configure command worked well.

I am writing mixed programming in C ++ / Fortran where nOne Fortran program is called from the main C ++ program.

  #include External "C"    void for_sub_ (int *, double 4., double *, int *);int main ()    int = i individually, ny = 3;    twice in x = 3.14159;    double = y [] 1.1, 2.2, 3.3;    for_sub _ (& i, & x, & ny); yes, go to 0;

  subroutine FOR_SUB (i, x, y, ny)use intrinsic :: iso_c_bindingimplicitly nointeger (c_long) :: i, nyreal (c_double) :: xreal (c_double) :: y (ny)print *, "y =", y (1: ny)End the FOR_SUB subroutine

The above code is explained in the C / Fortran Fun Guide which you can find here: Calling C Functions in Fortran

I want to reproduce code for C ++ / Fortran only. I compiled them with

  gfortran - you need f_sub.f90g ++ -c c-call-f.cppg ++ f_sub.o c-call-f.o

  Undefined logos for x86_64 architecture: "__gfortran_st_write", from: called _for_sub_ everything from f_sub.o Link to "__gfortran_st_write_done", from:     _for_sub_ at f_sub.o "__gfortran_transfer_array_write", called by:    _for_sub_ at f_sub.o "__gfortran_transfer_character_write", from: submitted _for_sub_ only in f_sub.o "__gfortran_transfer_integer_write" referenced by:    _for_sub_ at f_sub.o "__gfortran_transfer_real_write" submitted:    _for_sub_ at f_sub.old: character (s) not recognized for x86_64 architectureclang: linker error: failed to load with exit code, step 1 (use -v to see the call) `

What is the reason for the error? I also tried, you can add the -lf , -lfortran or -lg2c flag in the last compilation step, but the following error occurs:

  ld: library not found during [flag]clang: linker error: command failed due to exit code 1 (use -v to finally see the call)

BTW why any C / Fortran interoperability resources I found on the internet seemed so inconsistent, at one point I read that your whole family had a (C) name the procedure must be correct in its declaration, and elsewhere, for example, because of the link above, you won’t need it. Another thing, I read that a friend said that you don’t add a trailing underscore on the name of the subroutine in the calling product or service, but someone has to do it somewhere else. Unclear where of them went wrong?

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오류가 혼합된 C Fortran 코드를 컴파일할 수 없습니다
Error No Se Pudo Compilar Codigo Mixto C Fortran
Erro Incapaz De Compilar Codigo C Fortran Misto
Fehler Gemischter C Fortran Code Kann Nicht Kompiliert Werden
Erreur Impossible De Compiler Le Code C Fortran Mixte
Fout Kan Gemengde C Fortran Code Niet Compileren
Errore Impossibile Compilare Codice Misto C Fortran
Felet Kunde Inte Kompilera Blandad C Fortran Kod
Oshibka Ne Udaetsya Skompilirovat Smeshannyj Kod C Fortran
Blad Nie Mozna Skompilowac Mieszanego Kodu C Fortran