Bug#914545: sympow FTBFS: error: 'GP' undeclared

[Adrian Bunk]

Source: sympow
Version: 2.023.5-1
Severity: serious
Tags: ftbfs

https://buildd.debian.org/status/package.php?p=sympow&suite=sid

...
gcc -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wno-unused-result -O3  -std=gnu17 -fno-fast-math -mfpmath=sse -ffp-contract=on -DFPUCONTROLH   -c -o generate.o generate.c
generate.c: In function 'new_data':
generate.c:234:32: error: 'GP' undeclared (first use in this function)
  execlp(SH,SH,newdatascript,SH,GP,ARGS,NULL);}
                                ^~
generate.c:234:32: note: each undeclared identifier is reported only once for each function it appears in
make[1]: *** [Makefile:45: generate.o] Error 1