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Fix compilation of R 3.6.1 and below due to changes in GCC 10

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This commit is contained in:
Greg Lin 2021-10-25 17:05:16 -05:00
commit 74c19bc1a0
1 changed files with 22 additions and 0 deletions
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22
builder/build.sh
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@ -65,6 +65,22 @@ compile_r() {
build_flag='' build_flag=''
fi fi
# R 3.6.1 and below require additional compiler flags for GCC 10 and above
# (e.g., on Debian 11). Add -fcommon to CFLAGS to work around issues with new
# default of -fno-common for C (fixed in R 3.6.2). Add -fallow-argument-mismatch
# to FFLAGS to work around issues with changes to argument mismatch checking
# in Fortran (fixed in R 3.6.2, but not mentioned in NEWS).
# https://cran.r-project.org/doc/manuals/r-release/NEWS.3.html
# https://cran.r-project.org/doc/manuals/r-release/R-admin.html#Using-Fortran
# https://gcc.gnu.org/gcc-10/porting_to.html
gcc_major_version=$(gcc -dumpversion | cut -d '.' -f 1)
if _version_is_less_than "${R_VERSION}" 3.6.2 && _version_is_greater_than "${gcc_major_version}" 9; then
extra_cflags='-fcommon'
extra_fflags='-fallow-argument-mismatch'
echo "Adding extra CFLAGS: ${extra_cflags}"
echo "Adding extra FFLAGS: ${extra_fflags}"
fi
# Avoid a PCRE2 dependency for R 3.5 and 3.6. R 3.x uses PCRE1, but R 3.5+ # Avoid a PCRE2 dependency for R 3.5 and 3.6. R 3.x uses PCRE1, but R 3.5+
# will link against PCRE2 if present, although it is not actually used. # will link against PCRE2 if present, although it is not actually used.
# Since there's no way to disable this in the configure script, and we need # Since there's no way to disable this in the configure script, and we need
@ -105,6 +121,8 @@ compile_r() {
R_PRINTCMD=/usr/bin/lpr \ R_PRINTCMD=/usr/bin/lpr \
R_UNZIPCMD=/usr/bin/unzip \ R_UNZIPCMD=/usr/bin/unzip \
R_ZIPCMD=/usr/bin/zip \ R_ZIPCMD=/usr/bin/zip \
SHLIB_CFLAGS="${extra_cflags}" \
SHLIB_FFLAGS="${extra_fflags}" \
./configure \ ./configure \
--prefix=/opt/R/${1} \ --prefix=/opt/R/${1} \
${CONFIGURE_OPTIONS} \ ${CONFIGURE_OPTIONS} \
@ -150,6 +168,10 @@ _version_is_greater_than() {
test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1" test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"
} }
_version_is_less_than() {
test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$2"
}
###### RUN R COMPILE PROCEDURE ###### ###### RUN R COMPILE PROCEDURE ######
set_up_environment set_up_environment
fetch_r_source $R_VERSION fetch_r_source $R_VERSION