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If GAP provides GMP_PREFIX, use that #35

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Oct 16, 2024
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If GAP provides GMP_PREFIX, use that #35

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21 changes: 14 additions & 7 deletions configure
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Original file line number Diff line number Diff line change
Expand Up @@ -41,15 +41,22 @@ fi
source "$GAPROOT/sysinfo.gap"

# where is the GMP library?
# if not set by this configure, get the GMP bundled with GAP
if test -z "$GMPDIR"; then
if [[ -d "$GAPROOT/extern/install/gmp" ]]; then
GMPDIR="$GAPROOT/extern/install/gmp"
fi
if test -n "$GMPDIR"; then
# if the user supplied an explicit path to this configure script, use that
: # do nothing
elif test -n "${GMP_PREFIX+1}"; then
# GAP >= 4.12.1 provides GMP_PREFIX, use that
GMPDIR="$GMP_PREFIX"
elif [[ -d "$GAPROOT/extern/install/gmp" ]]; then
# GAP can be built with a bundled GMP; if we see that, use it
# (only works if the user has a self-compiled GAP)
GMPDIR="$GAPROOT/extern/install/gmp"
fi
# if still no GMP, try the one given as --with-gmp=<path> in GAP's configure

# if still no GMP, as a final resort scan GAP's config.log file to figure out
# where it found GMP (but this only works if the user self-compiled GAP)
if test -z "$GMPDIR"; then
if [[ -f $GAPROOT/config.log ]]; then
if [[ -f "$GAPROOT/config.log" ]]; then
for word in $(grep '\-\-with-gmp=' "$GAPROOT/config.log"); do
pp="${word#--with-gmp=}"
if [[ "$word" != "$pp" ]]; then
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