#! /bin/sh

if test -n "$NIX_GCC_WRAPPER_START_HOOK"; then
    . "$NIX_GCC_WRAPPER_START_HOOK"
fi

if test -z "$NIX_GLIBC_FLAGS_SET"; then
    NIX_CFLAGS_COMPILE="@cflagsCompile@ $NIX_CFLAGS_COMPILE"
    NIX_CFLAGS_LINK="@cflagsLink@ $NIX_CFLAGS_LINK"
    NIX_LDFLAGS="@ldflags@ $NIX_LDFLAGS"
fi

# Figure out if linker flags should be passed.  GCC prints annoying
# warnings when they are not needed.
dontLink=0
if test "$*" = "-v"; then
    dontLink=1
else    
    for i in "$@"; do
        if test "$i" = "-c"; then
            dontLink=1
        elif test "$i" = "-S"; then
            dontLink=1
        elif test "$i" = "-E"; then
            dontLink=1
        elif test "$i" = "-E"; then
            dontLink=1
        elif test "$i" = "-M"; then
            dontLink=1
        elif test "$i" = "-MM"; then
            dontLink=1
        fi
    done
fi

# Add the flags for the C compiler proper.
extra=($NIX_CFLAGS_COMPILE)

if test "$dontLink" != "1"; then

    # Add the flags that should only be passed to the compiler when
    # linking.
    extra=(${extra[@]} $NIX_CFLAGS_LINK)

    # Add the flags that should be passed to the linker (and prevent
    # `ld-wrapper' from adding NIX_LDFLAGS again).
    for i in $NIX_LDFLAGS; do
        extra=(${extra[@]} "-Wl,$i")
    done
    export NIX_LDFLAGS_SET=1

    if test "$NIX_STRIP_DEBUG" = "1"; then
        # Add executable-stripping flags.
        extra=(${extra[@]} $NIX_CFLAGS_STRIP)
    fi
fi

# Optionally print debug info.
if test "$NIX_DEBUG" = "1"; then
  echo "original flags to @gcc@:" >&2
  for i in "$@"; do
      echo "  $i" >&2
  done
  echo "extra flags to @gcc@:" >&2
  for i in ${extra[@]}; do
      echo "  $i" >&2
  done
fi

if test -n "$NIX_GCC_WRAPPER_EXEC_HOOK"; then
    . "$NIX_GCC_WRAPPER_EXEC_HOOK"
fi

exec @gcc@ "$@" ${extra[@]}