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# csharpcomp.m4
# serial 11
dnl Copyright (C) 2003-2005, 2007, 2009-2024 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl This file is offered as-is, without any warranty.
# Prerequisites of csharpcomp.sh.
# Checks for a C# compiler.
# Sets at most one of HAVE_MCS, HAVE_DOTNET_SDK, HAVE_DOTNET_CSC, HAVE_CSC.
# Sets HAVE_CSHARPCOMP to nonempty if csharpcomp.sh will work.
# Also sets CSHARPCOMPFLAGS.
AC_DEFUN([gt_CSHARPCOMP],
[
AC_REQUIRE([gt_CSHARP_CHOICE])
AC_MSG_CHECKING([for C[#] compiler])
HAVE_CSHARPCOMP=1
pushdef([AC_MSG_CHECKING],[:])dnl
pushdef([AC_CHECKING],[:])dnl
pushdef([AC_MSG_RESULT],[:])dnl
AC_CHECK_PROG([HAVE_MCS_IN_PATH], [mcs], [yes])
AC_CHECK_PROG([HAVE_DOTNET_IN_PATH], [dotnet], [yes])
AC_CHECK_PROG([HAVE_CSC_IN_PATH], [csc], [yes])
popdef([AC_MSG_RESULT])dnl
popdef([AC_CHECKING])dnl
popdef([AC_MSG_CHECKING])dnl
for impl in "$CSHARP_CHOICE" mono dotnet sscli no; do
case "$impl" in
mono)
if test -n "$HAVE_MCS_IN_PATH" \
&& mcs --version >/dev/null 2>/dev/null \
&& mcs --version 2>/dev/null | grep Mono >/dev/null; then
HAVE_MCS=1
ac_result="mcs"
break
fi
;;
dotnet)
# The dotnet compiler is called "Roslyn".
# <https://en.wikipedia.org/wiki/Roslyn_(compiler)>
# There are two situations:
# - A dotnet SDK, that contains a 'dotnet' program and the Roslyn
# compiler as csc.dll.
# - An MSVC installation, that contains the Roslyn compiler as csc.exe
# (e.g. in C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\Roslyn\csc.exe).
# In the first case, the user only has to make sure that 'dotnet' is
# found in $PATH.
# In the second case, they need to make sure that both 'dotnet' and
# 'csc' are found in $PATH.
if test -n "$HAVE_DOTNET_IN_PATH" \
&& dotnet --list-runtimes >/dev/null 2>/dev/null \
&& test -n "`dotnet --list-sdks 2>/dev/null`"; then
HAVE_DOTNET_SDK=1
ac_result="dotnet"
break
else
if test -n "$HAVE_CSC_IN_PATH" \
&& csc -help 2>/dev/null | grep analyzer >/dev/null \
&& { if csc -help 2>/dev/null | grep -i chicken > /dev/null; then false; else true; fi; }; then
HAVE_DOTNET_CSC=1
ac_result="dotnet"
break
fi
fi
;;
sscli)
if test -n "$HAVE_CSC_IN_PATH" \
&& csc -help >/dev/null 2>/dev/null \
&& { if csc -help 2>/dev/null | grep -i chicken > /dev/null; then false; else true; fi; }; then
HAVE_CSC=1
ac_result="csc"
break
fi
;;
no)
HAVE_CSHARPCOMP=
ac_result="no"
break
;;
esac
done
AC_MSG_RESULT([$ac_result])
AC_SUBST([HAVE_MCS])
AC_SUBST([HAVE_DOTNET_SDK])
AC_SUBST([HAVE_DOTNET_CSC])
AC_SUBST([HAVE_CSC])
dnl Provide a default for CSHARPCOMPFLAGS.
if test -z "${CSHARPCOMPFLAGS+set}"; then
CSHARPCOMPFLAGS="-O -g"
fi
AC_SUBST([CSHARPCOMPFLAGS])
])
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