* installing *source* package ‘HKprocess’ ...
** package ‘HKprocess’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C compiler: ‘gcc-14 (GCC) 14.2.0’
make[1]: Entering directory '/data/gannet/ripley/R/packages/tests-Strict/HKprocess/src'
gcc-14 -I"/data/gannet/ripley/R/R-devel/include" -DNDEBUG   -I/usr/local/include  -DSTRICT_R_HEADERS=1  -fpic  -g -O2 -Wall -pedantic -mtune=native -Wp,-D_FORTIFY_SOURCE=3 -fexceptions -fstack-protector-strong -fstack-clash-protection -fcf-protection -Werror=implicit-function-declaration -Wstrict-prototypes  -c VstarSfunction.c -o VstarSfunction.o
VstarSfunction.c: In function 'VstarSfunction':
VstarSfunction.c:45:25: error: 'PI' undeclared (first use in this function)
   45 |         y[0] = (2 * s)/ PI;
      |                         ^~
VstarSfunction.c:45:25: note: each undeclared identifier is reported only once for each function it appears in
make[1]: *** [/data/gannet/ripley/R/R-devel/etc/Makeconf:195: VstarSfunction.o] Error 1
make[1]: Leaving directory '/data/gannet/ripley/R/packages/tests-Strict/HKprocess/src'
ERROR: compilation failed for package ‘HKprocess’
* removing ‘/data/gannet/ripley/R/packages/tests-noRemap/Libs/HKprocess-lib/HKprocess’
Command exited with non-zero status 1
Time 0:00.99, 0.51 + 0.16